Update clean-cache.yml

Author: mayeut

.github/workflows/clean-cache.yml

@@ -3,7 +3,7 @@ name: Clean image cache
 on:
   workflow_dispatch:
     inputs:
-      dry-run:
+      dryrun:
         description: Dry Run
         type: boolean
         required: false
@@ -27,4 +27,4 @@ jobs:
         with:
           package: manylinux-cache
           delete-untagged: true
-          dry-run: (github.event_name == 'workflow_dispatch') && fromJSON(github.event.inputs.dry-run)
+          dry-run: (github.event_name == 'workflow_dispatch') && fromJSON(github.event.inputs.dryrun)