revert: remove frequent runs of this workflow and outputs with exit

Author: zimeg

.github/workflows/delete-pr-build-on-close.yml

@@ -5,13 +5,13 @@ name: Delete pre-release when a branch is deleted
 # This workflow action deletes that pre-release when a PR is merged or closed.
 on:
   pull_request:
-    # types:
-    #   - closed
+    types:
+      - closed
 
 jobs:
   delete-pre-release:
     name: Delete pre-release if exists
-    # if: github.event.pull_request.merged == true
+    if: github.event.pull_request.merged == true
     runs-on: ubuntu-latest
     steps:
       - name: Delete pre-release and tag named after branch
@@ -30,9 +30,6 @@ jobs:
           REF=$(echo "${BRANCH}" | sed 's/\//-/g')
           RELEASE_FOUND=1
 
-          echo "REF=$REF" # TODO: delete
-          exit 0
-
           # Delete tags matching the pull request branch from forks
           if GH_DEBUG=1 gh release --repo="slackapi/slack-cli" delete "${REF}" -y --cleanup-tag; then
             echo "Successfully deleted ${REF}"