chore(deps): update peter-evans/create-pull-request action to v7

Author: renovate[bot]

.github/workflows/send-pr.yml

@@ -40,7 +40,7 @@ jobs:
 
       - name: "Create Pull Request"
         id: create-pr
-        uses: peter-evans/create-pull-request@v6
+        uses: peter-evans/create-pull-request@v7
         with:
           token: ${{ secrets.PHPSTAN_BOT_TOKEN }}
           path: ./phpstan-src