Fixed small issue with mypy config not loaded

Author: semohr

.github/workflows/python.yml

@@ -25,15 +25,15 @@ jobs:
                   python -m pip install --upgrade pip
                   pip install ruff
                   pip install mypy
+                  pip install .
             - name: Check style with Ruff
               run: |
                   cd ./backend
                   ruff check --output-format=github .
             - name: Check type hints with mypy
               run: |
                   cd ./backend
-                  pip install .
-                  mypy --show-error-codes beets_flask
+                  mypy --show-error-codes --config-file ./pyproject.toml ./beets_flask
             - name: Test with pytest
               run: |
                   cd ./backend

backend/pyproject.toml

@@ -38,7 +38,7 @@ dependencies = [
 [project.optional-dependencies]
 # Can be install with e.g. `pip install -e .[dev]`
 test = ["pytest>=8.2.2", "pytest-asyncio>=0.23.8", "pytest-cov>=5.0.0"]
-dev = ["ruff>=0.6.5", "pre-commit>=3.8.0", "types-cachetools"]
+dev = ["ruff>=0.6.5", "pre-commit>=3.8.0", "types-cachetools", "mypy"]
 all = ["beets_flask[dev,test]"]
 
 [build-system]