Create Flake8 linter action

.github/workflows/flake8.yml

@@ -0,0 +1,23 @@
+name: Flake8
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.8", "3.9", "3.10"]
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v3
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install pillow flake8
+    - name: Analysing the code with pylint
+      run: |
+        flake8 $(git ls-files '*.py')