[auto-pkg-updater] Update SDK

Upgraded SDK to v18810.0.0

BUG=b/388436690
TEST=presubmit
RELEASE_NOTE=None

Change-Id: Ie8e6d44bc49d9469630fbf402bf434ed8ad391c3
Reviewed-on: https://cos-review.googlesource.com/c/third_party/overlays/chromiumos-overlay/+/89850
Reviewed-by: Nandhini Rengaraj <nrengaraj@google.com>
Reviewed-by: He Gao <hegao@google.com>
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>