build(deps): bump brettcannon/check-for-changed-files from 1 to 1.2.1 (#608)

Bumps [brettcannon/check-for-changed-files](https://github.com/brettcannon/check-for-changed-files) from 1 to 1.2.1.
- [Release notes](https://github.com/brettcannon/check-for-changed-files/releases)
- [Commits](brettcannon/check-for-changed-files@v1...v1.2.1)

---
updated-dependencies:
- dependency-name: brettcannon/check-for-changed-files
  dependency-version: 1.2.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/check-for-changeset.yml

@@ -18,7 +18,7 @@ jobs:
     steps:
       - uses: actions/checkout@v7
       - name: 'Check for changeset'
-        uses: brettcannon/check-for-changed-files@v1
+        uses: brettcannon/check-for-changed-files@v1.2.1
         with:
           file-pattern: '.changeset/*.md'
           skip-label: 'skip changeset'