deep checkout in helm e2e tests

Author: roothorp

.github/workflows/test-e2e.yml

@@ -191,6 +191,7 @@ jobs:
       - uses: actions/checkout@v5
         with:
           ref: ${{ github.event.pull_request.head.sha || github.sha }}
+          fetch-depth: '0'
 
       - name: Install devbox
         uses: jetify-com/[email protected]