chore(deps): update dependency com.google.googlejavaformat:google-java-format to v1.15.0 (#1752)

Author: renovate-bot

dependencies.properties

@@ -24,7 +24,7 @@ version.gax_httpjson=0.103.6-SNAPSHOT
 # Gradle build depends on prebuilt maven artifacts, while Bazel build depends on Bazel workspaces
 # with the sources.
 version.com_google_protobuf=3.21.4
-version.google_java_format=1.1
+version.google_java_format=1.15.0
 version.io_grpc=1.48.0
 
 # Maven artifacts.