deps: update dependency com.google.cloud:google-cloud-bigquery to v2.20.1 (#5706)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-bigquery](https://togithub.com/googleapis/java-bigquery) | `2.20.0` -> `2.20.1` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-bigquery/2.20.1/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-bigquery/2.20.1/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-bigquery/2.20.1/compatibility-slim/2.20.0)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-bigquery/2.20.1/confidence-slim/2.20.0)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

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

### [`v2.20.1`](https://togithub.com/googleapis/java-bigquery/blob/HEAD/CHANGELOG.md#&#8203;2201-httpsgithubcomgoogleapisjava-bigquerycomparev2200v2201-2023-01-04)

[Compare Source](https://togithub.com/googleapis/java-bigquery/compare/v2.20.0...v2.20.1)

##### Dependencies

-   Update dependency com.google.cloud:google-cloud-bigquerystorage-bom to v2.28.0 ([#&#8203;2451](https://togithub.com/googleapis/java-bigquery/issues/2451)) ([4b760e1](https://togithub.com/googleapis/java-bigquery/commit/4b760e1049c6ddbfcb17b7de5905f43a53165c3d))

</details>

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Author: renovate-bot

google-cloud-bom/pom.xml

@@ -174,7 +174,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-bigquery</artifactId>
-        <version>2.20.0</version>
+        <version>2.20.1</version>
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>