Updated workflow to checkout main before running script

.github/workflows/create-cherry-pick-pr.yml

@@ -23,17 +23,7 @@ jobs:
     steps:
       - uses: actions/checkout@v3
         with:
-          # This is to guarantee that the most recent tag is fetched.
-          # This can be configured to a more reasonable value by consumers.
-          fetch-depth: 0
-          # We check out the specified branch, which will be used as the base
-          # branch for all git operations and the patch PR.
-          ref: ${{ github.event.inputs.branch_name }}
-          # The last step of this workflow creates a patch branch, which shall itself
-          # trigger another workflow: 'create-bug-report.yml'. However, there is a security
-          # feature in Github that prevents workflows from triggering other workflows by default.
-          # The workaround is to use a personal access token (BUG_REPORT_TOKEN) instead of
-          # the default GITHUB_TOKEN for the checkout action.
+          ref: main
           token: ${{ secrets.BUG_REPORT_TOKEN }}
       - name: Get Node.js version
         id: nvm