GKESRE-1438 Rebase fork on upstream: Bazel 9 + Go 1.26, GitHub App auth, optional namespace#13

rajatvig wants to merge 12 commits into

mainetsy/rules_gitops:mainfrom

claude/github-app-namespace-skip-s9ri8vetsy/rules_gitops:claude/github-app-namespace-skip-s9ri8vCopy head branch name to clipboard