integrate isort into lint nox session

Author: TrevorBergeron

.github/sync-repo-settings.yaml

@@ -12,7 +12,6 @@ branchProtectionRules:
     - 'cla/google'
     - 'docs'
     - 'lint'
-    - 'format'
     - 'mypy'
     - 'unit (3.9)'
     - 'unit (3.10)'

noxfile.py

@@ -139,7 +139,12 @@ def lint(session):
     Returns a failure if the linters find linting errors or sufficiently
     serious code quality issues.
     """
-    session.install("flake8", BLACK_VERSION)
+    session.install("flake8", BLACK_VERSION, ISORT_VERSION)
+    session.run(
+        "isort",
+        "--check",
+        *LINT_PATHS,
+    )
     session.run(
         "black",
         "--check",