Fix Homebrew checksum matcher in publish workflow

[ChiragAgg5k]

What does this PR do?

Fixes the Homebrew checksum replacement regex in the publish workflow.

The current workflow uses a Ruby regex literal with \Q...\E interpolation when rewriting Formula/appwrite.rb, and that matcher does not match the generated formula content during the release job. The first checksum replacement fails and aborts the publish step.

Failed run:
https://github.com/appwrite/sdk-for-cli/actions/runs/24404302600/job/71283184664

Test Plan

• Reproduced the failure path locally against the current Formula/appwrite.rb
• Verified that replacing \Q#{artifact}\E with #{Regexp.escape(artifact)} allows all four checksum substitutions to succeed

Related

• No linked issue

[greptile-apps]

Greptile Summary

This PR fixes the Homebrew checksum replacement regex in the publish workflow by swapping the Perl-style \Q...\E literal quoting — unsupported by Ruby's Onigmo regex engine — for Regexp.escape(artifact), the idiomatic Ruby equivalent. The surrounding logic (version substitution, branch resolution, syntax validation with ruby -c, and git push) is unchanged and looks correct.

Confidence Score: 5/5

• This PR is safe to merge — it applies a minimal, targeted fix for a confirmed CI failure with no other logic changes.
• The single change (\Q...\E → Regexp.escape) is the correct Ruby idiom, the fix is validated by the author against the actual formula file, and there are no P0/P1 findings.
• No files require special attention.

Important Files Changed

Filename	Overview
.github/workflows/publish.yml	Replaces the unsupported Ruby \Q...\E regex quoting with Regexp.escape(artifact), the correct Ruby idiom; remaining workflow logic is unchanged and looks correct.

_{Reviews (1): Last reviewed commit: "fix: repair Homebrew checksum matcher in..." | Re-trigger Greptile}