api: Fix kwarg error in SdkService.Uprev

BUG=b:259445595
TEST=./run_tests
TEST=run the endpoint

Change-Id: I01ba182f3c4763a2aedcd5fcc8d2ba4852aa8aed
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/4661998
Commit-Queue: Greg Edelston <gredelston@google.com>
Tested-by: Greg Edelston <gredelston@google.com>
Auto-Submit: Greg Edelston <gredelston@google.com>
Commit-Queue: Jack Rosenthal <jrosenth@chromium.org>
Reviewed-by: Jack Rosenthal <jrosenth@chromium.org>
diff --git a/api/controller/sdk.py b/api/controller/sdk.py
index f0d9704..f8a5723 100644
--- a/api/controller/sdk.py
+++ b/api/controller/sdk.py
@@ -196,7 +196,7 @@
     # The main uprev logic occurs in service/sdk.py.
     modified_files = sdk.uprev_sdk_and_prebuilts(
         binhost_gs_bucket=input_proto.binhost_gs_bucket,
-        version=target_version,
+        sdk_version=target_version,
         toolchain_tarball_template=input_proto.toolchain_tarball_template,
     )