moved flake8 and pytest config settings pyproject.toml

Author: sandeepsuryaprasad

py/BUILD.bazel

@@ -333,7 +333,7 @@ py_library(
     ],
     data = [
         "pytest.ini",
-        "setup.cfg",
+        "pyproject.toml",
         "test/selenium/webdriver/common/test_file.txt",
         "test/selenium/webdriver/common/test_file2.txt",
         ":webextensions-selenium-example-unsigned-zip",

py/pyproject.toml

@@ -1,3 +1,10 @@
 [build-system]
 requires = ["setuptools", "setuptools-rust"]
 build-backend = "setuptools.build_meta"
+
+[tool.flake8]
+exclude = ".tox,docs/source/conf.py,*venv"
+# Disable this once black is applied throughout & line length is better handled.
+extend-ignore = "E501, E203"
+# This does nothing for now as E501 is ignored.
+max-line-length = 120