Bump peter-evans/find-comment from 3 to 4

Bumps [peter-evans/find-comment](https://github.com/peter-evans/find-comment) from 3 to 4.
- [Release notes](https://github.com/peter-evans/find-comment/releases)
- [Commits](peter-evans/find-comment@v3...v4)

---
updated-dependencies:
- dependency-name: peter-evans/find-comment
  dependency-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/benchmark-comment.yml

@@ -41,7 +41,7 @@ jobs:
           echo ::set-output name=body::$(cat ./pull-request-number.artifact)
       # check if the previous comment exists
       - name: find comment
-        uses: peter-evans/find-comment@v3
+        uses: peter-evans/find-comment@v4
         id: fc
         with:
           issue-number: ${{ steps.output-pull-request-number.outputs.body }}