chore(deps): bump com.google.cloud:libraries-bom from 26.24.0 to 26.28.0

Bumps [com.google.cloud:libraries-bom](https://github.com/googleapis/java-cloud-bom) from 26.24.0 to 26.28.0. - [Release notes](https://github.com/googleapis/java-cloud-bom/releases) - [Changelog](https://github.com/googleapis/java-cloud-bom/blob/main/release-please-config.json) - [Commits](googleapis/java-cloud-bom@v26.24.0...v26.28.0) --- updated-dependencies: - dependency-name: com.google.cloud:libraries-bom dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pom.xml

@@ -385,7 +385,7 @@
  <dependency>
  <groupId>com.google.cloud</groupId>
  <artifactId>libraries-bom</artifactId>
- <version>26.24.0</version>
+ <version>26.28.0</version>
  <type>pom</type>
  <scope>import</scope>
  </dependency>