Revert Revert Makefile but it works plz

.github/workflows/delete-workflow-runs.yml

@@ -1,3 +1,5 @@
+# This is based on the example at https://github.com/marketplace/actions/delete-workflow-runs
+
 name: Delete old workflow runs
 on:
   workflow_dispatch:
@@ -5,15 +7,15 @@ on:
       days:
         description: 'Days-worth of runs to keep for each workflow'
         required: true
-        default: '7' # default value is "30"
+        default: '0'
       minimum_runs:
         description: 'Minimum runs to keep for each workflow'
         required: true
-        default: '5' # default value is "6"
+        default: '0'
       delete_workflow_pattern:
         description: 'Name or filename of the workflow (if not set, all workflows are targeted)'
         required: false
-        default: 'Build and Release YTLitePlus' # default value is ""
+        default: 'Build and Release YTLitePlus'
       delete_workflow_by_state_pattern:
         description: 'Filter workflows by state: active, deleted, disabled_fork, disabled_inactivity, disabled_manually'
         required: true
@@ -40,6 +42,7 @@ on:
           - success
       dry_run:
         description: 'Logs simulated changes, no deletions are performed'
+        type: boolean
         required: false
 
 jobs: