Bump flake8-pyproject from 1.2.3 to 1.2.4 (#755)

Author: dependabot[bot]

.pre-commit-config.yaml

@@ -13,7 +13,7 @@ repos:
           - mccabe==0.7.0
           - pycodestyle==2.14.0
           - pyflakes==3.4.0
-          - Flake8-pyproject==1.2.3
+          - Flake8-pyproject==1.2.4
         files: ^(python_typing_update|script|tests)/.+\.py$
         exclude: *fixtures
   - repo: https://github.com/PyCQA/isort