deps: update dependency com.google.cloud:google-cloud-managed-identities-bom to v1.1.6 (#5399)
deps: update dependency com.google.cloud:google-cloud-managed-identities-bom to v1.1.6 (#5399)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-managed-identities-bom](https://togithub.com/googleapis/java-managed-identities) | `1.1.5` -> `1.1.6` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-managed-identities-bom/1.1.6/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-managed-identities-bom/1.1.6/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-managed-identities-bom/1.1.6/compatibility-slim/1.1.5)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-managed-identities-bom/1.1.6/confidence-slim/1.1.5)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>googleapis/java-managed-identities</summary>

### [`v1.1.6`](https://togithub.com/googleapis/java-managed-identities/blob/HEAD/CHANGELOG.md#&#8203;116-httpsgithubcomgoogleapisjava-managed-identitiescomparev115v116-2022-10-05)

[Compare Source](https://togithub.com/googleapis/java-managed-identities/compare/v1.1.5...v1.1.6)

##### Bug Fixes

-   update protobuf to v3.21.7 ([09966d5](https://togithub.com/googleapis/java-managed-identities/commit/09966d5d990e5fe7de6b741ce973d3d9c099d47d))

</details>

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