chore(deps): update dependency com.google.cloud:google-cloud-spanner to v1.58.0 (#322)
chore(deps): update dependency com.google.cloud:google-cloud-spanner to v1.58.0 (#322)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [com.google.cloud:google-cloud-spanner](https://togithub.com/googleapis/java-spanner) | minor | `1.57.0` -> `1.58.0` |

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### Release Notes

<details>
<summary>googleapis/java-spanner</summary>

### [`v1.58.0`](https://togithub.com/googleapis/java-spanner/blob/master/CHANGELOG.md#&#8203;1580-httpswwwgithubcomgoogleapisjava-spannercomparev1570v1580-2020-07-07)

[Compare Source](https://togithub.com/googleapis/java-spanner/compare/v1.57.0...v1.58.0)

##### Features

-   add async api ([#&#8203;81](https://www.github.com/googleapis/java-spanner/issues/81)) ([462839b](https://www.github.com/googleapis/java-spanner/commit/462839b625e58e235581b8ba10b398e1d222eaaf))
-   support setting compression option ([#&#8203;192](https://www.github.com/googleapis/java-spanner/issues/192)) ([965e95e](https://www.github.com/googleapis/java-spanner/commit/965e95e70ccd9c62abd6513b0011aab136e48e26))

##### Bug Fixes

-   set default values for streaming retry ([#&#8203;316](https://www.github.com/googleapis/java-spanner/issues/316)) ([543373b](https://www.github.com/googleapis/java-spanner/commit/543373b22336be72b10026fda9f0b55939ab94b4))

##### Performance Improvements

-   use streaming RPC for PDML ([#&#8203;287](https://www.github.com/googleapis/java-spanner/issues/287)) ([df47c13](https://www.github.com/googleapis/java-spanner/commit/df47c13a4c00bdf5e6eafa01bbb64c12a96d7fb8))

##### Dependencies

-   update dependency com.google.cloud:google-cloud-shared-dependencies to v0.8.2 ([#&#8203;315](https://www.github.com/googleapis/java-spanner/issues/315)) ([3d6fb9f](https://www.github.com/googleapis/java-spanner/commit/3d6fb9fd7dc6b2b5b2ff9935228701ac795c9167))

</details>

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