chore(deps): Bump google-cloud-http-client-version from 2.0.3 to 2.1.0 (#20989)

Bumps `google-cloud-http-client-version` from 2.0.3 to 2.1.0.

Updates `com.google.http-client:google-http-client` from 2.0.3 to 2.1.0
- [Release notes](https://github.com/googleapis/google-http-java-client/releases)
- [Changelog](https://github.com/googleapis/google-http-java-client/blob/main/CHANGELOG.md)
- [Commits](googleapis/google-http-java-client@v2.0.3...v2.1.0)

Updates `com.google.http-client:google-http-client-jackson2` from 2.0.3 to 2.1.0
- [Release notes](https://github.com/googleapis/google-http-java-client/releases)
- [Changelog](https://github.com/googleapis/google-http-java-client/blob/main/CHANGELOG.md)
- [Commits](googleapis/google-http-java-client@v2.0.3...v2.1.0)

Updates `com.google.http-client:google-http-client-gson` from 2.0.3 to 2.1.0
- [Release notes](https://github.com/googleapis/google-http-java-client/releases)
- [Changelog](https://github.com/googleapis/google-http-java-client/blob/main/CHANGELOG.md)
- [Commits](googleapis/google-http-java-client@v2.0.3...v2.1.0)

Updates `com.google.http-client:google-http-client-apache-v2` from 2.0.3 to 2.1.0
- [Release notes](https://github.com/googleapis/google-http-java-client/releases)
- [Changelog](https://github.com/googleapis/google-http-java-client/blob/main/CHANGELOG.md)
- [Commits](googleapis/google-http-java-client@v2.0.3...v2.1.0)

---
updated-dependencies:
- dependency-name: com.google.http-client:google-http-client
  dependency-version: 2.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: com.google.http-client:google-http-client-jackson2
  dependency-version: 2.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: com.google.http-client:google-http-client-gson
  dependency-version: 2.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: com.google.http-client:google-http-client-apache-v2
  dependency-version: 2.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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parent/pom.xml

@@ -211,7 +211,7 @@
         <google-cloud-bigquery-version>2.57.2</google-cloud-bigquery-version>
         <google-cloud-core-version>2.63.1</google-cloud-core-version>
         <google-cloud-functions-version>2.72.0</google-cloud-functions-version>
-        <google-cloud-http-client-version>2.0.3</google-cloud-http-client-version>
+        <google-cloud-http-client-version>2.1.0</google-cloud-http-client-version>
         <google-cloud-pubsub-version>1.145.0</google-cloud-pubsub-version>
         <google-cloud-pubsublite-version>1.15.21</google-cloud-pubsublite-version>
         <google-cloud-secretmanager-version>2.82.0</google-cloud-secretmanager-version>