Change how uv dependencies get install for GitHub Actions so it doesn't require a uv.lock file to be committed

Author: tleonhardt

.github/actions/setup-python-env/action.yml

@@ -26,5 +26,5 @@ runs:
         cache-suffix: ${{ matrix.python-version }}
 
     - name: Install Python dependencies
-      run: uv sync --frozen
+      run: uv sync
       shell: bash