fix(deps): update dependency google-auth-library to v7 (#285)
fix(deps): update dependency google-auth-library to v7 (#285)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [google-auth-library](https://togithub.com/googleapis/google-auth-library-nodejs) | [`^6.0.0` -> `^7.0.0`](https://renovatebot.com/diffs/npm/google-auth-library/6.1.6/7.0.0) | [![age](https://badges.renovateapi.com/packages/npm/google-auth-library/7.0.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/npm/google-auth-library/7.0.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/npm/google-auth-library/7.0.0/compatibility-slim/6.1.6)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/npm/google-auth-library/7.0.0/confidence-slim/6.1.6)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

<details>
<summary>googleapis/google-auth-library-nodejs</summary>

### [`v7.0.0`](https://togithub.com/googleapis/google-auth-library-nodejs/blob/master/CHANGELOG.md#&#8203;700-httpswwwgithubcomgoogleapisgoogle-auth-library-nodejscomparev616v700-2021-02-08)

[Compare Source](https://togithub.com/googleapis/google-auth-library-nodejs/compare/v6.1.6...v7.0.0)

##### ⚠ BREAKING CHANGES

-   integrates external_accounts with `GoogleAuth` and ADC ([#&#8203;1052](https://togithub.com/googleapis/google-auth-library-nodejs/issues/1052))
-   workload identity federation support ([#&#8203;1131](https://togithub.com/googleapis/google-auth-library-nodejs/issues/1131))

##### Features

-   adds service account impersonation to `ExternalAccountClient` ([#&#8203;1041](https://www.github.com/googleapis/google-auth-library-nodejs/issues/1041)) ([997f124](https://www.github.com/googleapis/google-auth-library-nodejs/commit/997f124a5c02dfa44879a759bf701a9fa4c3ba90))
-   adds text/json credential_source support to IdentityPoolClients ([#&#8203;1059](https://www.github.com/googleapis/google-auth-library-nodejs/issues/1059)) ([997f124](https://www.github.com/googleapis/google-auth-library-nodejs/commit/997f124a5c02dfa44879a759bf701a9fa4c3ba90))
-   defines `ExternalAccountClient` used to instantiate external account clients ([#&#8203;1050](https://www.github.com/googleapis/google-auth-library-nodejs/issues/1050)) ([997f124](https://www.github.com/googleapis/google-auth-library-nodejs/commit/997f124a5c02dfa44879a759bf701a9fa4c3ba90))
-   defines `IdentityPoolClient` used for K8s and Azure workloads ([#&#8203;1042](https://www.github.com/googleapis/google-auth-library-nodejs/issues/1042)) ([997f124](https://www.github.com/googleapis/google-auth-library-nodejs/commit/997f124a5c02dfa44879a759bf701a9fa4c3ba90))
-   defines ExternalAccountClient abstract class for external_account credentials ([#&#8203;1030](https://www.github.com/googleapis/google-auth-library-nodejs/issues/1030)) ([997f124](https://www.github.com/googleapis/google-auth-library-nodejs/commit/997f124a5c02dfa44879a759bf701a9fa4c3ba90))
-   get AWS region from environment variable ([#&#8203;1067](https://www.github.com/googleapis/google-auth-library-nodejs/issues/1067)) ([997f124](https://www.github.com/googleapis/google-auth-library-nodejs/commit/997f124a5c02dfa44879a759bf701a9fa4c3ba90))
-   implements AWS signature version 4 for signing requests ([#&#8203;1047](https://www.github.com/googleapis/google-auth-library-nodejs/issues/1047)) ([997f124](https://www.github.com/googleapis/google-auth-library-nodejs/commit/997f124a5c02dfa44879a759bf701a9fa4c3ba90))
-   implements the OAuth token exchange spec based on rfc8693 ([#&#8203;1026](https://www.github.com/googleapis/google-auth-library-nodejs/issues/1026)) ([997f124](https://www.github.com/googleapis/google-auth-library-nodejs/commit/997f124a5c02dfa44879a759bf701a9fa4c3ba90))
-   integrates external_accounts with `GoogleAuth` and ADC ([#&#8203;1052](https://www.github.com/googleapis/google-auth-library-nodejs/issues/1052)) ([997f124](https://www.github.com/googleapis/google-auth-library-nodejs/commit/997f124a5c02dfa44879a759bf701a9fa4c3ba90))
-   workload identity federation support ([#&#8203;1131](https://www.github.com/googleapis/google-auth-library-nodejs/issues/1131)) ([997f124](https://www.github.com/googleapis/google-auth-library-nodejs/commit/997f124a5c02dfa44879a759bf701a9fa4c3ba90))

##### Bug Fixes

-   **deps:** update dependency puppeteer to v6 ([#&#8203;1129](https://www.github.com/googleapis/google-auth-library-nodejs/issues/1129)) ([5240fb0](https://www.github.com/googleapis/google-auth-library-nodejs/commit/5240fb0e7ba5503d562659a0d1d7c952bc44ce0e))
-   **deps:** update dependency puppeteer to v7 ([#&#8203;1134](https://www.github.com/googleapis/google-auth-library-nodejs/issues/1134)) ([02d0d73](https://www.github.com/googleapis/google-auth-library-nodejs/commit/02d0d73a5f0d2fc7de9b13b160e4e7074652f9d0))

##### [6.1.6](https://www.github.com/googleapis/google-auth-library-nodejs/compare/v6.1.5...v6.1.6) (2021-01-27)

##### Bug Fixes

-   call addSharedMetadataHeaders even when token has not expired ([#&#8203;1116](https://www.github.com/googleapis/google-auth-library-nodejs/issues/1116)) ([aad043d](https://www.github.com/googleapis/google-auth-library-nodejs/commit/aad043d20df3f1e44f56c58a21f15000b6fe970d))

##### [6.1.5](https://www.github.com/googleapis/google-auth-library-nodejs/compare/v6.1.4...v6.1.5) (2021-01-22)

##### Bug Fixes

-   support PEM and p12 when using factory ([#&#8203;1120](https://www.github.com/googleapis/google-auth-library-nodejs/issues/1120)) ([c2ead4c](https://www.github.com/googleapis/google-auth-library-nodejs/commit/c2ead4cc7650f100b883c9296fce628f17085992))

##### [6.1.4](https://www.github.com/googleapis/google-auth-library-nodejs/compare/v6.1.3...v6.1.4) (2020-12-22)

##### Bug Fixes

-   move accessToken to headers instead of parameter ([#&#8203;1108](https://www.github.com/googleapis/google-auth-library-nodejs/issues/1108)) ([67b0cc3](https://www.github.com/googleapis/google-auth-library-nodejs/commit/67b0cc3077860a1583bcf18ce50aeff58bbb5496))

##### [6.1.3](https://www.github.com/googleapis/google-auth-library-nodejs/compare/v6.1.2...v6.1.3) (2020-10-22)

##### Bug Fixes

-   **deps:** update dependency gaxios to v4 ([#&#8203;1086](https://www.github.com/googleapis/google-auth-library-nodejs/issues/1086)) ([f2678ff](https://www.github.com/googleapis/google-auth-library-nodejs/commit/f2678ff5f8f5a0ee33924278b58e0a6e3122cb12))

##### [6.1.2](https://www.github.com/googleapis/google-auth-library-nodejs/compare/v6.1.1...v6.1.2) (2020-10-19)

##### Bug Fixes

-   update gcp-metadata to catch a json-bigint security fix ([#&#8203;1078](https://www.github.com/googleapis/google-auth-library-nodejs/issues/1078)) ([125fe09](https://www.github.com/googleapis/google-auth-library-nodejs/commit/125fe0924a2206ebb0c83ece9947524e7b135803))

##### [6.1.1](https://www.github.com/googleapis/google-auth-library-nodejs/compare/v6.1.0...v6.1.1) (2020-10-06)

##### Bug Fixes

-   **deps:** upgrade gtoken ([#&#8203;1064](https://www.github.com/googleapis/google-auth-library-nodejs/issues/1064)) ([9116f24](https://www.github.com/googleapis/google-auth-library-nodejs/commit/9116f247486d6376feca505bbfa42a91d5e579e2))

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