Update Workflow for generating repo diagrams (#1908)

Co-authored-by: George Pollard <[email protected]>

.github/workflows/visualize-repo.yml

@@ -15,6 +15,18 @@ jobs:
         uses: actions/checkout@v2
         ref: bot/update-diagrams
 
+      - name: Create Branch
+        uses: peterjgrainger/action-create-branch@b48b0ca0e307c9b56f059b70274984ffeaa90a43 # Pinned to v2.0.1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GH_PAT }}
+        with:
+          branch: 'bot/update-diagrams'
+
+      - name: Checkout code
+        uses: actions/checkout@master
+        with:
+            ref: bot/update-diagrams
+
       - name: Update ASO v1 diagram
         uses: githubocto/repo-visualizer@main
         with:
@@ -42,11 +54,12 @@ jobs:
           should_push: false
 
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v3
+        uses: peter-evans/create-pull-request@7380612b49221684fefa025244f2ef4008ae50ad # v3.10.1
         with:
           token: ${{ secrets.GH_PAT }}
           commit-message: Update Code Structure Diagrams
           branch: bot/update-diagrams
+          base: main
           delete-branch: true
           title: '[Automated] Update Code Structure Diagrams'
           body: |