deps: update dependency com.google.cloud:google-cloud-bigquerystorage-bom to v2.15.0 (#4652)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-bigquerystorage-bom](https://togithub.com/googleapis/java-bigquerystorage) | `2.14.2` -> `2.15.0` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-bigquerystorage-bom/2.15.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-bigquerystorage-bom/2.15.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-bigquerystorage-bom/2.15.0/compatibility-slim/2.14.2)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-bigquerystorage-bom/2.15.0/confidence-slim/2.14.2)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

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

### [`v2.15.0`](https://togithub.com/googleapis/java-bigquerystorage/blob/HEAD/CHANGELOG.md#&#8203;2150-httpsgithubcomgoogleapisjava-bigquerystoragecomparev2142v2150-2022-07-01)

[Compare Source](https://togithub.com/googleapis/java-bigquerystorage/compare/v2.14.2...v2.15.0)

##### Features

-   add fields to eventually contain row level errors ([ec3ea29](https://togithub.com/googleapis/java-bigquerystorage/commit/ec3ea29efae1cf6567055d43219690b3d2db8b5e))

##### Bug Fixes

-   Modify client lib retry policy for CreateWriteStream with longer backoff, more error code and longer overall time ([#&#8203;1679](https://togithub.com/googleapis/java-bigquerystorage/issues/1679)) ([ec3ea29](https://togithub.com/googleapis/java-bigquerystorage/commit/ec3ea29efae1cf6567055d43219690b3d2db8b5e))

##### Dependencies

-   update dependency com.google.cloud:google-cloud-bigquery to v2.13.3 ([#&#8203;1678](https://togithub.com/googleapis/java-bigquerystorage/issues/1678)) ([740f2ae](https://togithub.com/googleapis/java-bigquerystorage/commit/740f2ae070454fbc2a87fdd7c01c7f90fc3867f3))
-   update dependency com.google.cloud:google-cloud-bigquery to v2.13.4 ([#&#8203;1680](https://togithub.com/googleapis/java-bigquerystorage/issues/1680)) ([de1c8df](https://togithub.com/googleapis/java-bigquerystorage/commit/de1c8df710b0510d66e91ac42d5d56eba4442bdb))
-   update dependency com.google.cloud:google-cloud-bigquery to v2.13.6 ([#&#8203;1684](https://togithub.com/googleapis/java-bigquerystorage/issues/1684)) ([05cdb38](https://togithub.com/googleapis/java-bigquerystorage/commit/05cdb380d27ab7484c7f81a0a490a58de67694c6))
-   update dependency com.google.cloud:google-cloud-bigquery to v2.13.7 ([#&#8203;1687](https://togithub.com/googleapis/java-bigquerystorage/issues/1687)) ([8795ae7](https://togithub.com/googleapis/java-bigquerystorage/commit/8795ae78e55bb4eb651a6e78a2645e3fe8df8d8e))
-   update dependency com.google.cloud:google-cloud-shared-dependencies to v2.13.0 ([#&#8203;1683](https://togithub.com/googleapis/java-bigquerystorage/issues/1683)) ([2821ee9](https://togithub.com/googleapis/java-bigquerystorage/commit/2821ee9d6893ce1f2ac68615d99973e2c98e3678))

</details>

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Author: renovate-bot

google-cloud-bom/pom.xml

@@ -233,7 +233,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-bigquerystorage-bom</artifactId>
-        <version>2.14.2</version>
+        <version>2.15.0</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>