lint: api: sort imports

After configuring sort behavior in isort.cfg, run `./scripts/isort`
on all the api/ modules in the tree.

BUG=b:187788732
TEST=`cros lint` is clean

Change-Id: I838009ea70ff52a1560a597509909c0b514247b5
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/3615052
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Alex Klein <saklein@chromium.org>
diff --git a/api/controller/test.py b/api/controller/test.py
index ec1ef7c..986b724 100644
--- a/api/controller/test.py
+++ b/api/controller/test.py
@@ -13,14 +13,16 @@
 import string
 import subprocess
 
+from chromite.third_party.google.protobuf import json_format
+
 from chromite.api import controller
 from chromite.api import faux
 from chromite.api import validate
-from chromite.api.metrics import deserialize_metrics_log
 from chromite.api.controller import controller_util
 from chromite.api.gen.chromite.api import test_pb2
 from chromite.api.gen.chromiumos import common_pb2
 from chromite.api.gen.chromiumos.build.api import container_metadata_pb2
+from chromite.api.metrics import deserialize_metrics_log
 from chromite.lib import build_target_lib
 from chromite.lib import chroot_lib
 from chromite.lib import constants
@@ -34,7 +36,6 @@
 from chromite.scripts import cros_set_lsb_release
 from chromite.service import packages as packages_service
 from chromite.service import test
-from chromite.third_party.google.protobuf import json_format
 from chromite.utils import key_value_store