update GHA workflow

Author: ElectricalBoy

.github/workflows/ci.yml

@@ -55,5 +55,7 @@ jobs:
         uses: actions/setup-python@v6
         with:
           python-version-file: "pyproject.toml"
+      - name: Run linter
+        uses: astral-sh/ruff-action@v3
       - name: Check styling
         uses: psf/black@stable