CI: re-enable `make lint`

.github/workflows/style_check.yml

@@ -29,18 +29,7 @@ jobs:
           architecture: x64
           cache: 'pip'
           cache-dependency-path: 'requirements*'
-      - name: check OS
-        run: cat /etc/os-release
-      - name: Install dependencies
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y git make gcc
-          make system-deps
-      - name: Install/upgrade Python setup deps
-        run: python3 -m pip install --upgrade pip setuptools wheel
-      - name: Install TTS
-        run: |
-          python3 -m pip install .[all]
-          python3 setup.py egg_info
-      - name: Style check
-        run: make style
+      - name: Install/upgrade dev dependencies
+        run: python3 -m pip install -r requirements.dev.txt
+      - name: Lint check
+        run: make lint