ci: only keep --extra test in GitHub unit test workflow

Co-authored-by: Liang Wu <wuliang@google.com>
PiperOrigin-RevId: 873072872

Author: wuliang229

.github/workflows/python-unit-tests.yml

@@ -43,7 +43,7 @@ jobs:
       run: |
         uv venv .venv
         source .venv/bin/activate
-        uv sync --extra test --extra eval --extra a2a
+        uv sync --extra test
 
     - name: Run unit tests with pytest
       run: |