Revert "Automerge"

This reverts commit 9363ab5.

Author: ondrejmirtes

.github/workflows/send-pr.yml

@@ -44,4 +44,3 @@ jobs:
           body: "Update PHP 8 stubs to ${{ env.GITHUB_REF_NAME }}"
           committer: "phpstan-bot <[email protected]>"
           commit-message: "Update PHP 8 stubs"
-          labels: "automerge"