Pre-release: Update version to 2.12.0-test#9

github-actions[bot] wants to merge 1 commit intorelease/v2.12-test.xezhang6811/aws-otel-java-instrumentation:release/v2.12-test.xfrom

v2.12.0-test_releaseezhang6811/aws-otel-java-instrumentation:v2.12.0-test_releaseCopy head branch name to clipboard