ci: Combine ci+cd to ci workflow

There is nothing to deploy continuously anymore.

Author: nikobockerman

.github/workflows/ci-cd.yaml

@@ -3,7 +3,12 @@ on:
   pull_request:
     paths:
       - ".github/workflows/ci.yaml"
-  workflow_call:
+  push:
+    branches:
+      - main
+  schedule:
+    # Run every Monday at 00:30 UTC
+    - cron: "30 0 * * 1"
   workflow_dispatch:
 permissions:
   contents: read