This pull request resolves an API compatibility issue in the sdk-platform-java standalone Bazel build by updating the dependency pointers for google-auth-library.

Problem

Bazel integration tests for sdk-platform-java were failing due to a mismatch between local source code usage and external dependency signatures:

external/com_google_api_gax_java/gax/src/main/java/com/google/api/gax/rpc/ClientContext.java:357: error: incompatible types: String cannot be converted to URI
    return ((GdchCredentials) credentials).createWithGdchAudience(audienceString);
                                                                  ^

This occurred because gax-java locally relies on createWithGdchAudience(String), which was introduced in newer versions of google-auth-library, but the inner Bazel dependencies.properties file was still downloading 1.42.1.

Solution

• Updated google-auth-library-oauth2-http and google-auth-library-credentials versions from 1.42.1 to 1.46.0 inside sdk-platform-java/gax-java/dependencies.properties.
• Added a temporary CI trigger to ensure standalone validation jobs are correctly integrated into the main pipeline feedback cycle.