cleanup

.github/workflows/ci.yml

@@ -87,16 +87,14 @@ jobs:
         )
     steps:
       - uses: actions/checkout@v4
-        name: Checkout merge commit from origin and ${{ env.HEAD_REPOSITORY }}:${{ env.HEAD_REF }}
+        name: Checkout merge commit
         with:
           # We need to fetch all branches and commits so that Nx affected has a base to compare
           # against.
           fetch-depth: 0
 
       - name: Derive appropriate SHAs for base and head for `nx affected` commands
         uses: nrwl/nx-set-shas@v4
-        with:
-          main-branch-name: 'main'
 
       - name: Set up the dev container
         uses: ./.github/actions/setup-dev-container