Run gha test after pixi lockfile generation

.github/workflows/test.yml

@@ -9,8 +9,6 @@ on:
   push:
     branches:
       - main
-  pull_request:
-    branches: ["update-pixi"]
   schedule:
     - cron: "0 0 * * *"
 

.github/workflows/update-lockfiles.yml

@@ -2,6 +2,7 @@
 name: Update lockfiles
 
 permissions:
+  actions: write
   contents: write
   pull-requests: write
 
@@ -30,11 +31,18 @@ jobs:
         uses: peter-evans/create-pull-request@5f6978faf089d4d20b00c7766989d076bb2fc7f1 # v8.1.1
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
-          commit-message: Update pixi lockfile
+          commit-message: Update pixi lockfile and run Test GHA
           title: Update pixi lockfile
           body-path: diff.md
           branch: update-pixi
           base: main
           labels: pixi
           delete-branch: true
           add-paths: pixi.lock
+      - name: Run tests on that Pull Request
+        run: |
+          # visually inspect workflow that needs be run e.g. test.yml
+          # gh workflow view test.yml --yaml
+          gh workflow run test.yml --ref update-pixi
+        env:
+          GH_TOKEN: ${{ github.token }}