fix: Add --system flag to uv pip install in Code Complexity workflow (#17)

The Code Complexity Analysis job was failing because uv pip install
requires either a virtual environment or the --system flag to install
packages system-wide. Since the workflow doesn't create a venv, we
need to use --system flag.

This fixes the error: 'No virtual environment found; run uv venv to
create an environment, or pass --system to install into a non-virtual
environment'

Co-authored-by: Vijay Iyengar <Vijay.Iyengar@team.belong.com.au>

Author: Vijay-Duke

.github/workflows/code-quality.yml

@@ -69,7 +69,7 @@ jobs:
 
       - name: Install analysis tools
         run: |
-          uv pip install radon xenon flake8 flake8-cognitive-complexity
+          uv pip install --system radon xenon flake8 flake8-cognitive-complexity
           
       - name: Cyclomatic Complexity
         run: |