GH actions: purge-expired-artifacts.yml (#4565)

.github/workflows/purge-expired-artifacts.yml

@@ -0,0 +1,20 @@
+# Deletes expired artifacts, which are not removed automatically by github.
+
+name: 'Purge expired artifacts'
+
+on:
+  schedule:
+    - cron: '0 1 * * *'
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  purge-artifacts:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: LKP-RnD/purge-expired-artifacts-action@v4
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          repo_to_purge: "mochajs/mocha"
+          dry_run: "false"