ci: use refactored action in manifest-PR.yml

nordicbuilder workflow was refactored to action. It was also moved to nrfconnect org.

Signed-off-by: Kari Hamalainen <[email protected]>

.github/workflows/manifest-PR.yml

@@ -1,4 +1,4 @@
-name: Automatically create manifest PR
+name: handle manifest PR
 on:
   pull_request_target:
     types: [opened, synchronize, closed]
@@ -7,7 +7,10 @@ on:
 
 
 jobs:
-  call_workflow:
-    uses: nordicbuilder/action-manifest-pr/.github/workflows/auto-manifest-pr.yml@main
-    secrets:
-       NB_TOKEN: ${{ secrets.NCS_GITHUB_TOKEN }}
+  call-manifest-pr-action:
+    runs-on: ubuntu-latest
+    steps:
+      - name: handle manifest PR
+        uses: nrfconnect/action-manifest-pr@main
+        with:
+          token: ${{ secrets.NCS_GITHUB_TOKEN }}