Add frozen flag in GH workflow

Signed-off-by: Dennis Traub <dennis.traub@gmail.com>

Author: DennisTraub

.github/workflows/python.yml

@@ -61,7 +61,7 @@ jobs:
           uv run --frozen coverage report --fail-under=80
 
       - name: Run pyright
-        run: uv run --all-packages pyright
+        run: uv run --frozen --all-packages pyright
 
       - name: Run ruff format
         run: uv run --frozen ruff format .