Ignore venv during in isort

setup.cfg

@@ -21,7 +21,7 @@ ignore-path = _build,docs/_build
 [isort]
 line_length=100
 multi_line_output=4
-skip=migrations,project_template,node_modules,.git,__pycache__,LC_MESSAGES
+skip=migrations,project_template,node_modules,.git,__pycache__,LC_MESSAGES,venv
 blocked_extensions=rst,html,js,svg,txt,css,scss,png,snap,tsx
 known_first_party=wagtail
 default_section=THIRDPARTY