chore: Create submodule CI check

.github/workflows/submodule.yml

@@ -0,0 +1,46 @@
+name: 'Update submodules'
+
+on:
+  workflow_dispatch:
+  # run every 72 hours (every 3 days)
+  schedule:
+    - cron: "0 0 */3 * *"  # This runs at midnight UTC every 3rd day
+
+jobs:
+  createPullRequest:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Git identity
+        run: |
+          git config --global user.email "github-actions[bot]@users.noreply.github.com"
+          git config --global user.name "GitHub Actions"
+
+      - name: Update submodules to latest commit
+        run: git submodule update --remote --force
+
+      - name: Commit changes
+        run: |
+          git add .
+          git commit -m "Automated submodule update"
+          git push origin HEAD:automated-submodule-update
+
+      - name: Create Pull Request using peter-evans/create-pull-request
+        uses: peter-evans/create-pull-request@v3
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          commit-message: "Automated submodule update"
+          committer: GitHub <[email protected]>
+          author: ${{ github.actor }} <${{ github.actor }}@users.noreply.github.com>
+          signoff: false
+          branch: automated-submodule-update
+          delete-branch: true
+          title: '[Automated] Submodule update'
+          body: |
+            Submodule update
+            - Auto-generated by [create-pull-request][1]
+          reviewers: |
+            editorial
+          draft: false