Lint action: Use ruff

.github/workflows/lint.yml

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+name: lint
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+
+jobs:
+  windows:
+    runs-on: windows-latest
+    strategy:
+      matrix:
+        vs-versions:
+          - 68
+        python-version:
+          - '3.12'
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        run: |
+          python3 -m pip install --upgrade pip
+          pip install vapoursynth-portable==${{ matrix.vs-versions }}
+          pip install -r requirements.txt
+          pip install -r requirements-dev.txt
+
+      - name: Running ruff
+        run: ruff check vsjet

requirements-dev.txt

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+packaging>=24.0
+pycodestyle>=2.11.1
+ruff>=0.6.5