feat: add clean-cache workflow

.github/workflows/clean-cache.yml

@@ -0,0 +1,32 @@
+name: Clean cache
+
+on:
+  workflow_dispatch:
+
+jobs:
+  cleanup:
+    name: Cleanup
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout 🚪
+        uses: actions/checkout@v3
+
+      - name: Cleanup ✨
+        run: |
+          gh extension install actions/gh-actions-cache
+
+          REPO=${{ github.repository }}
+
+          echo "Fetching list of cache key"
+          cacheKeysForPR=$(gh actions-cache list -R $REPO | cut -f 1 )
+
+          ## Setting this to not fail the workflow while deleting cache keys. 
+          set +e
+          echo "Deleting caches..."
+          for cacheKey in $cacheKeysForPR
+          do
+              gh actions-cache delete $cacheKey -R $REPO --confirm
+          done
+          echo "Done"
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/nightly.yml

@@ -5,6 +5,10 @@ on:
     - cron: '0 * * * *'
   workflow_dispatch:
 
+env:
+  CI: true
+  NIGHTLY: true
+
 jobs:
   ci:
     name: CI
@@ -27,5 +31,3 @@ jobs:
 
       - name: Run Tests 🧪
         run: pnpm test:nightly
-        env:
-          NIGHTLY: true