ci: add temporary Actions probe workflow

Verify Forgejo schedules jobs for this repo before Obtainium release builds.

Co-authored-by: Cursor <cursoragent@cursor.com>

.forgejo/workflows/actions-probe.yml

@@ -0,0 +1,14 @@
+# Temporary probe: does this repo schedule Actions at all?
+name: Actions probe
+
+on:
+  push:
+    branches: [main]
+  workflow_dispatch:
+
+jobs:
+  probe:
+    runs-on: desktop-release
+    steps:
+      - name: ping
+        run: echo "frosty actions probe ok"