Refactor Github Action per b/485167538#15970

google-admin wants to merge 1 commit intopreview-kokoro-windows-bazel-1.9googleapis/google-cloud-cpp:preview-kokoro-windows-bazel-1.9from

lsc-1771380623.9332066googleapis/google-cloud-cpp:lsc-1771380623.9332066Copy head branch name to clipboard