Chore: [AEA-0000] - auto approve dependabot (#1002)

## Summary

- Routine Change

### Details

- auto approve dependabot

Author: anthony-nhs

.github/workflows/auto_approve_dependabot.yml

@@ -0,0 +1,21 @@
+name: Auto-approve dependency updates
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '*/30 * * * *'
+
+permissions: {}
+jobs:
+  auto-approve-dependabot:
+    runs-on: ubuntu-22.04
+    environment: create_pull_request
+    permissions:
+      contents: write
+      pull-requests: write
+    steps:
+      - name: Auto approve and enable auto-merge
+        uses: NHSDigital/eps-dependabot-approve@da0503449b218ccd99bc547e242007d5514e4d2f
+        with:
+          AUTOMERGE_APP_ID: ${{ secrets.AUTOMERGE_APP_ID }}
+          AUTOMERGE_PEM: ${{ secrets.AUTOMERGE_PEM }}

.github/workflows/pull_request.yml

@@ -13,15 +13,6 @@ jobs:
       attestations: read
       contents: read
       packages: read
-  dependabot-auto-approve-and-merge:
-    uses: NHSDigital/eps-common-workflows/.github/workflows/dependabot-auto-approve-and-merge.yml@e798d5aee897de6f7dc387dd5623fcd9ba4c8929
-    permissions:
-      contents: write
-      pull-requests: write
-    secrets:
-      AUTOMERGE_APP_ID: ${{ secrets.AUTOMERGE_APP_ID }}
-      AUTOMERGE_PEM: ${{ secrets.AUTOMERGE_PEM }}
-
 
   quality_checks:
     uses: NHSDigital/eps-common-workflows/.github/workflows/quality-checks-devcontainer.yml@8399c1f015c1304e40771cbd8ccc24c7ed48fdbc