gifn-apply: use Ruff's isort implementation

Change-Id: I9a8254a643916a7fb2a035bd2cfcac4370316c0c
diff --git a/tools/git-if-needed/tox.ini b/tools/git-if-needed/tox.ini
index 6c8ad52..df7df5e 100644
--- a/tools/git-if-needed/tox.ini
+++ b/tools/git-if-needed/tox.ini
@@ -24,6 +24,7 @@
 deps =
   -r python/requirements/ruff.txt
 commands =
+  ruff check --config python/config/ruff-base/pyproject.toml --select=D,I --diff -- {[defs]pyfiles}
   ruff format --check --config python/config/ruff-base/pyproject.toml --diff -- {[defs]pyfiles}
 
 [testenv:reformat]
@@ -34,6 +35,7 @@
 deps =
   -r python/requirements/ruff.txt
 commands =
+  ruff check --config python/config/ruff-base/pyproject.toml --select=D,I --fix -- {[defs]pyfiles}
   ruff format --config python/config/ruff-base/pyproject.toml -- {[defs]pyfiles}
 
 [testenv:mypy]