update uc step

Author: ioanarm

.github/workflows/e2e.yml

@@ -41,6 +41,9 @@ jobs:
       - name: Install Python dependencies
         run: |
           cd tests
+          # uv lock files for git workspace dependencies use cached directory paths.
+          # Pre-fetch the git dependency to populate cache so lock file paths resolve.
+          uv pip install --no-deps "git+https://github.com/langwatch/langevals@3a934d1dc4ea95f039cf7bc4969e6bad1543c719" || true
           uv sync --all-groups
 
       - id: get-secrets