Bump actions/cache from 3.2.3 to 3.2.4 (#2446)

.github/workflows/tests.yaml

@@ -47,7 +47,7 @@ jobs:
           pip install -U setuptools
           python -m pip install -U pip
       - name: cache mypy
-        uses: actions/cache@58c146cc91c5b9e778e71775dfe9bf1442ad9a12
+        uses: actions/cache@627f0f41f6904a5b1efbaed9f96d9eb58e92e920
         with:
           path: ./.mypy_cache
           key: mypy|${{ matrix.python }}|${{ hashFiles('pyproject.toml') }}