Bump peter-evans/find-comment from 2.3.0 to 2.4.0 (#3670)

Bumps [peter-evans/find-comment](https://github.com/peter-evans/find-comment) from 2.3.0 to 2.4.0.
- [Release notes](https://github.com/peter-evans/find-comment/releases)
- [Commits](peter-evans/find-comment@034abe9...a54c31d)

---
updated-dependencies:
- dependency-name: peter-evans/find-comment
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Cooper Lees <me@cooperlees.com>

.github/workflows/diff_shades_comment.yml

@@ -33,7 +33,7 @@ jobs:
       - name: Try to find pre-existing PR comment
         if: steps.metadata.outputs.needs-comment == 'true'
         id: find-comment
-        uses: peter-evans/find-comment@034abe94d3191f9c89d870519735beae326f2bdb
+        uses: peter-evans/find-comment@a54c31d7fa095754bfef525c0c8e5e5674c4b4b1
         with:
           issue-number: ${{ steps.metadata.outputs.pr-number }}
           comment-author: "github-actions[bot]"