Switch to pyproject.toml

.github/workflows/lock.yaml

@@ -22,4 +22,4 @@ jobs:
       - uses: dessant/lock-threads@c1b35aecc5cdb1a34539d14196df55838bb2f836
         with:
           issue-inactive-days: 14
-          pr-inactive-days: 14
+          pr-inactive-days: 14

.github/workflows/tests.yaml

@@ -52,7 +52,7 @@ jobs:
         uses: actions/cache@58c146cc91c5b9e778e71775dfe9bf1442ad9a12
         with:
           path: ./.mypy_cache
-          key: mypy|${{ matrix.python }}|${{ hashFiles('setup.cfg') }}
+          key: mypy|${{ matrix.python }}|${{ hashFiles('pyproject.toml') }}
         if: matrix.tox == 'typing'
       - run: pip install tox
       - run: tox run -e ${{ matrix.tox }}