Fix repo

Author: ondrejmirtes

.github/workflows/send-pr.yml

@@ -50,5 +50,6 @@ jobs:
         uses: peter-evans/enable-pull-request-automerge@v1
         with:
           token: ${{ secrets.PHPSTAN_BOT_TOKEN }}
+          repository: phpstan/phpstan-src
           pull-request-number: ${{ steps.create-pr.outputs.pull-request-number }}
           merge-method: rebase