build(deps): bump com.google.cloud:google-cloud-secretmanager

Bumps [com.google.cloud:google-cloud-secretmanager](https://github.com/googleapis/google-cloud-java) from 2.24.0 to 2.31.0.
- [Release notes](https://github.com/googleapis/google-cloud-java/releases)
- [Changelog](https://github.com/googleapis/google-cloud-java/blob/main/java-document-ai/CHANGELOG.md)
- [Commits](https://github.com/googleapis/google-cloud-java/commits)

---
updated-dependencies:
- dependency-name: com.google.cloud:google-cloud-secretmanager
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

gradle/libs.versions.toml

@@ -7,7 +7,7 @@ failsafe = "3.3.1"
 googleCloudIamAdmin = "3.19.0"
 googleCloudIamCredentials = "2.24.0"
 googleCloudStorage = "2.26.0"
-googleCloudSecretManager = "2.24.0"
+googleCloudSecretManager = "2.31.0"
 googleCloudCore = "2.26.0"
 
 [libraries]