💚 Update PR description editing action (#7309)

Switch to upstream and use a more recent version.
Fixes failure to edit on empty descriptions.

Signed-off-by: Alexandre Franke <alexandre.franke@gmail.com>

.github/workflows/netlify.yaml

@@ -69,7 +69,7 @@ jobs:
                   NETLIFY_SITE_ID: ${{ secrets.NETLIFY_SITE_ID }}
               timeout-minutes: 1
             - name: Edit PR Description
-              uses: velas/pr-description@v1.0.1
+              uses: Beakyn/gha-comment-pull-request@2167a7aee24f9e61ce76a23039f322e49a990409
               env:
                   GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
               with: