⬆️ Updates marocchino/sticky-pull-request-comment action to v3

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/dependabot-validate.yml

@@ -15,7 +15,7 @@ jobs:
       - uses: marocchino/validate-dependabot@v1
         id: validate
 
-      - uses: marocchino/sticky-pull-request-comment@v2
+      - uses: marocchino/sticky-pull-request-comment@v3
         if: always()
         with:
           header: validate-dependabot