Update cos-gpu-installer to v2.0.27

BUG=b/237702412
TEST=presubmit
RELEASE_NOTE=Updated cos-gpu-installer to v2.0.27. This resolves the issue where multiple installers
can be started in the same VM.

Change-Id: I558750ec3370477d0db44ab4a3b6d15b3e5677ea
Reviewed-on: https://cos-review.googlesource.com/c/cos/overlays/board-overlays/+/36887
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Reviewed-by: Robert Kolchmeyer <rkolchmeyer@google.com>
2 files changed