chore: remove dry-run

Author: rjaegers

.github/workflows/image-cleanup.yml

@@ -24,6 +24,5 @@ jobs:
             ghcr.io:443
       - uses: dataaxiom/ghcr-cleanup-action@cd0cdb900b5dbf3a6f2cc869f0dbb0b8211f50c4 # v1.0.16
         with:
-          dry-run: true
           delete-orphaned-images: true
           packages: amp-devcontainer,amp-devcontainer-cpp,amp-devcontainer-rust