chore(deps): update peter-evans/find-comment action to v4

Author: renovate[bot]

actions/package-size/action.yml

@@ -35,7 +35,7 @@ runs:
     - name: Find Size Comment
       # Only do commenting on non-forks. A fork does not have permissions for comments.
       if: github.event.pull_request.head.repo.full_name == github.repository
-      uses: peter-evans/find-comment@3eae4d37986fb5a8592848f6a574fdf654e61f9e # v3.1.0
+      uses: peter-evans/find-comment@b30e6a3c0ed37e7c023ccd3f1db5c6c0b0c23aad # v4.0.0
       id: fc
       with:
         issue-number: ${{ inputs.pr_number }}