ci: auto delete cache (OpenAtomFoundation#2232)

Author: baerwang

.github/workflows/clean-cache.yml

@@ -0,0 +1,22 @@
+name: Cleanup Caches By a Branch
+on:
+  pull_request:
+    types:
+      - closed
+
+jobs:
+  cleanup:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Cleanup
+        run: |
+          gh extension install actions/gh-actions-cache
+          for cacheKey in $(gh actions-cache list -R $REPO -B $BRANCH -L 100 | cut -f 1 )
+          do
+            gh actions-cache delete $cacheKey -R $REPO -B $BRANCH --confirm &
+          done
+          wait
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          REPO: ${{ github.repository }}
+          BRANCH: refs/pull/${{ github.event.pull_request.number }}/merge