workflows: trigger test workflow after auto-rebase

Add workflow_dispatch trigger to test.yml and a step in auto-rebase
to call it via gh CLI after pushing the workflows branch. This ensures
tests run after rebase since GITHUB_TOKEN pushes don't trigger workflows.

Author: JackLau1222

.github/workflows/auto-rebase.yml

@@ -8,6 +8,7 @@ on:
 
 permissions:
   contents: write
+  actions: write
 
 jobs:
   rebase:
@@ -46,3 +47,9 @@ jobs:
 
       - name: Push changes
         run: git push origin ${{ matrix.branch }} --force-with-lease
+
+      - name: Trigger test workflow
+        if: matrix.branch == 'workflows'
+        run: gh workflow run test.yml --ref ${{ matrix.branch }}
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/test.yml

@@ -1,8 +1,9 @@
 name: "Test"
 
-on: 
+on:
   push:
   pull_request:
+  workflow_dispatch:
 
 permissions: read-all