chore: Add merge_group trigger to CI workflow

[UnschooledGamer]

No description provided.

[greptile-apps]

Greptile Summary

This PR enables CI checks for GitHub merge-queue commits. The changes are:

• Adds the merge_group workflow trigger.
• Adds the missing end-of-file newline.

Confidence Score: 5/5

This looks safe to merge.

• No blocking issues found in the changed code.

Important Files Changed

Filename	Overview
.github/workflows/ci.yml	Adds merge-queue CI execution while preserving the existing pull-request-only translation check.

_{Reviews (1): Last reviewed commit: "chore: Add merge_group trigger to CI wor..." | Re-trigger Greptile}