Keepalive workflow (#35)

* Keepalive added to ci.yml and stale.yml

* keepalive.yml added

.github/workflows/keepalive.yml

@@ -0,0 +1,19 @@
+name: Keepalive Workflow
+
+on:
+  schedule:
+    - cron: "0 0 * * *"
+
+permissions:
+  actions: write
+
+jobs:
+  cronjob-based-github-action:
+    name: Keepalive Workflow
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: gautamkrishnar/keepalive-workflow@v2
+        with:
+          workflow_files: "stale.yml, dart-ci.yml"
+          time_elapsed: "0"

.github/workflows/stale.yml

@@ -9,4 +9,4 @@ on:
 jobs:
   stale:
     uses: configcat/.github/.github/workflows/stale.yml@master
-    secrets: inherit
+    secrets: inherit