Refactor Github Action per b/485167538#88

google-admin wants to merge 1 commit intorelease-please--branches--main--components--spannergemini-cli-extensions/spanner:release-please--branches--main--components--spannerfrom

lsc-1771408669.749873gemini-cli-extensions/spanner:lsc-1771408669.749873Copy head branch name to clipboard