cos-gpu-installer: Release v2.5.7

This includes the changes from
https://cos-review.git.corp.google.com/c/cos/tools/+/111111.

BUG=b/425959661
TEST=presubmit, `COS_GPU_INSTALLER=gcr.io/zhihuil-dev-sandbox-886704/cos-gpu-installer:testing cos-extensions install gpu -- --version R580 --debug --test --module-arg nvidia.NVreg_CoherentGPUMemoryMode=latestd`, `COS_GPU_INSTALLER=gcr.io/zhihuil-dev-sandbox-886704/cos-gpu-installer:testing cos-extensions install gpu -- --version R580 --debug --test`, `COS_GPU_INSTALLER=gcr.io/zhihuil-dev-sandbox-886704/cos-gpu-installer:testing cos-extensions install gpu -- --version R570 --debug --test`
RELEASE_NOTE=None

Change-Id: Ia520ac6df94d1ba7e9a0ba850e8a91b678d01e95
Reviewed-on: https://cos-review.googlesource.com/c/cos/tools/+/111701
Cloud-Build: GCB Service account <228075978874@cloudbuild.gserviceaccount.com>
Tested-by: Kevin Liu <zhihuil@google.com>
Reviewed-by: Kevin Berry <kpberry@google.com>