Migrate flake8 config into pyproject.toml

Yeah, we should switch to ruff... don't judge me!

dev-environment.yml

@@ -29,6 +29,7 @@ dependencies:
   - black
   - build
   - flake8
+  - flake8-pyproject
   - isort
   - pytest
   - pytest-cov

pyproject.toml

@@ -76,5 +76,13 @@ include-package-data = false
 where = ["src"]
 namespaces = false
 
+# Thanks to Flake8-pyproject, we can configure flake8 here!
+[tool.flake8]
+exclude = ["bin", "build", "docs", "dist"]
+extend-ignore = ["E203"]
+# See https://black.readthedocs.io/en/stable/guides/using_black_with_other_tools.html#flake8
+max-line-length = 88
+min_python_version = "3.8"
+
 [tool.isort]
 profile = "black"