Bring back black profile to isort (#1297)

Set `black` profile in the `isort` configuration. It fixes the racing
condition between black formatter and sort organizer in VS Code. This
setting was accidentally removed in PR that disabled alphabetical
imports.

pyproject.toml

@@ -100,6 +100,7 @@ target-version = [
 ]
 
 [tool.isort]
+profile = "black"
 lines_between_sections = 1
 only_sections = true