0.0.6: Escape brew command substitution in update-homebrew-formula workflow

- Prevents premature evaluation of the brew prefix in the generated Homebrew formula.
- Ensures the literal "$(brew --prefix ch)" string is preserved for correct usage.

0.0.5

Refactor theme configuration: remove post_install copying and add fal…

0.0.4

Explicitly require FileUtils and update post_install to call FileUtil…

0.0.3: Update Homebrew formula to install renamed binary

- Change the install command to use "ch" instead of "ch.sh", reflecting the recent renaming of the binary.
- Minor formatting cleanup in the workflow file.

0.0.2

Use GitHub Actions expression syntax for environment variables in Hom…

0.0.1: Add GitHub Actions workflow to auto-update Homebrew formula on release

- Introduce workflow to compute SHA256 checksum of release tarball.
- Update Homebrew formula with the new version, URL, and checksum.
- Automate commit and push to the Homebrew tap repository.