chore(ci): upgrade 8BitJonny/gh-get-current-pr to v4

Author: dargmuesli

.github/workflows/ci.yml

@@ -25,7 +25,6 @@ jobs:
         with:
           filterOutClosed: true
           filterOutDraft: true
-          sha: ${{ github.event.pull_request.head.sha }}
   build:
     needs: prepare_jobs
     name: dargstack rgen