Uses installable package for dev dependencies

Updates the installation of development dependencies in the linting workflow to use the installable package.

This simplifies dependency management and aligns with standard Python packaging practices.

Author: grimley517

.github/workflows/lint_python.yml

@@ -11,7 +11,7 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install -r requirements-dev.txt
+          pip install .[dev]
       - name: Lint with flake8
         run: flake8 ./patterns --count --show-source --statistics
         continue-on-error: true