ci: add python linting as part of checks

Signed-off-by: Daniil Tatianin <[email protected]>

.github/workflows/main.yaml

@@ -33,3 +33,23 @@ jobs:
         if: always()
         with:
           report_paths: result.xml
+  lint-python-scripts:
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: true
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Install flake8 & mypy
+        run: |
+          sudo apt update
+          sudo apt install python3 python3-pip
+          pip install flake8 mypy pytest
+
+      - name: Run flake8
+        run: flake8 tests/*.py
+
+      - name: Run mypy
+        run: mypy --disallow-incomplete-defs --no-implicit-optional tests/*.py