fix: set executable permissions on built craft binary

[BYK]

The esbuild output doesn't have execute permissions by default. This adds a chmod call after the build to make dist/craft executable.

Fixes the CI failure:

./dist/craft: Permission denied

[github-actions]

Semver Impact of This PR

🟢 Patch (bug fixes)

📋 Changelog Preview

This is how your changes will appear in the changelog.
Entries from this PR are highlighted with a left border (blockquote style).

---

This PR will not appear in the changelog.

---

_{🤖 This preview updates automatically when you update the PR.}