deps: update gax.version to v2.11.0 (#581)

Author: renovate-bot

java-shared-dependencies/first-party-dependencies/pom.xml

@@ -56,7 +56,7 @@
  <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  <site.installationModule>${project.artifactId}</site.installationModule>
  <grpc.version>1.44.0</grpc.version>
- <gax.version>2.9.0</gax.version>
+ <gax.version>2.11.0</gax.version>
  <grpc-gcp.version>1.1.0</grpc-gcp.version>
  <guava.version>31.0.1-jre</guava.version>
  <protobuf.version>3.19.3</protobuf.version>