The actions actions/checkout@v4 and actions/setup-python@v6 are not allowed in base44/javascript-sdk because all actions must be from a repository owned by your enterprise, created by GitHub, or match one of the patterns: PostHog/upload-source-maps@*, anthropics/claude-code-action@*, denoland/setup-deno@*, lycheeverse/lychee-action@*, oven-sh/setup-bun@*, peter-evans/repository-dispatch@*. All actions must also be pinned to a full-length commit SHA.