Revert "skip heavy tests for draft (#913)"

This reverts commit 2ba76fc.

Author: defbin

.github/workflows/ci.yml

@@ -28,7 +28,6 @@ on:
 jobs:
   test:
     runs-on: ubuntu-latest
-    if: github.event.pull_request.draft == false
     timeout-minutes: 120
     strategy:
       fail-fast: false