chore: use self hosted update action (#22)

Author: cgoea

.github/workflows/auto-update.yml

@@ -14,19 +14,26 @@ on:
       - main
       - release-*
 
+permissions: {}
+
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 
-permissions: {}
-
 jobs:
-  Auto-Update-PR:
+  update-pull-requests:
     permissions:
       contents: read
       pull-requests: write
     runs-on: ubuntu-latest
+
     steps:
-      - uses: tibdex/auto-update@4081c5bdc34560b58288a010318054e63e6f4a51
+      - name: Checkout repository
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
+        with:
+          persist-credentials: false
+
+      - name: Update pull requests
+        uses: open-edge-platform/orch-ci/.github/actions/pr_updater@f341738d975c38b2b91f25d405baeb2d39bf2ddb  # 0.1.14
         with:
           github_token: ${{ secrets.SYS_ORCH_GITHUB }}