Bump com.google.cloud:google-cloud-bigtable from 2.11.2 to 2.29.1

Bumps [com.google.cloud:google-cloud-bigtable](https://github.com/googleapis/java-bigtable) from 2.11.2 to 2.29.1.
- [Release notes](https://github.com/googleapis/java-bigtable/releases)
- [Changelog](https://github.com/googleapis/java-bigtable/blob/main/CHANGELOG.md)
- [Commits](googleapis/java-bigtable@v2.11.2...v2.29.1)

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

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

pom.xml

@@ -198,7 +198,7 @@
         <dependency>
             <groupId>com.google.cloud</groupId>
             <artifactId>google-cloud-bigtable</artifactId>
-            <version>2.11.2</version>
+            <version>2.29.1</version>
         </dependency>
         <dependency>
             <groupId>com.google.cloud</groupId>