chore: update Python CI workflow

.github/workflows/python-app.yml

@@ -1,5 +1,5 @@
-# This workflow will install Python dependencies, run tests and lint with a single version of Python
-# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
+# Building and testing Python
+# https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python
 
 name: Python CI
 
@@ -11,32 +11,38 @@ on:
 
 jobs:
   build:
-
     runs-on: ubuntu-latest
-
     steps:
-    - uses: actions/checkout@v4
+
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
     - name: Set up Python 3.9
       uses: actions/setup-python@v5
       with:
         python-version: 3.9
-    - name: Install dependencies
+
+    - name: Install packages with pip
       run: |
         python -m pip install --upgrade pip
         pip install flake8 pytest pytest-cov
         if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+
     - name: Lint with Flake8
       run: |
         # stop the build if there are Python syntax errors or undefined names
         flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
         # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
         flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+
     - name: Run tests with pytest
       run: |
         pytest -v
+
     - name: Generate coverage report with pytest-cov
       run: |
         pytest --cov=./ --cov-report=xml
+
     - name: Upload coverage report to Codecov
       uses: codecov/codecov-action@v4
       with: