Upgrade: [dependabot] - bump NHSDigital/eps-common-workflows/.github/workflows/dependabot-auto-approve-and-merge.yml

Bumps [NHSDigital/eps-common-workflows/.github/workflows/dependabot-auto-approve-and-merge.yml](https://github.com/nhsdigital/eps-common-workflows) from 5.1.25 to 5.1.28.
- [Release notes](https://github.com/nhsdigital/eps-common-workflows/releases)
- [Changelog](https://github.com/NHSDigital/eps-common-workflows/blob/main/release.config.cjs)
- [Commits](NHSDigital/eps-common-workflows@3cba6a3...41e3450)

---
updated-dependencies:
- dependency-name: NHSDigital/eps-common-workflows/.github/workflows/dependabot-auto-approve-and-merge.yml
  dependency-version: 5.1.28
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/pull_request.yml

@@ -10,7 +10,7 @@ env:
 jobs:
   dependabot-auto-approve-and-merge:
     needs: quality_checks
-    uses: NHSDigital/eps-common-workflows/.github/workflows/dependabot-auto-approve-and-merge.yml@3cba6a3733673bafc95526503478674332c26007
+    uses: NHSDigital/eps-common-workflows/.github/workflows/dependabot-auto-approve-and-merge.yml@2b3ddfd1e59daf9905522d0140c6cd08e2547432
     secrets:
       AUTOMERGE_APP_ID: ${{ secrets.AUTOMERGE_APP_ID }}
       AUTOMERGE_PEM: ${{ secrets.AUTOMERGE_PEM }}