Make cos_gpu_installer_v1 compatible with cloudbuild

Fix to address comment in https://cos-review.googlesource.com/c/cos/tools/+/16632

BUG=b/183723138

Change-Id: I683d60ef4c876a93031e3025ce80a580e8450ee9
Reviewed-on: https://cos-review.googlesource.com/c/cos/tools/+/16810
Cloud-Build: GCB Service account <228075978874@cloudbuild.gserviceaccount.com>
Reviewed-by: Ke Wu <mikewu@google.com>
Tested-by: Arnav Kansal <rnv@google.com>
diff --git a/src/cmd/cos_gpu_installer_v1/container_build_request.yaml b/src/cmd/cos_gpu_installer_v1/cloudbuild.yaml
similarity index 76%
rename from src/cmd/cos_gpu_installer_v1/container_build_request.yaml
rename to src/cmd/cos_gpu_installer_v1/cloudbuild.yaml
index dc74682..69b353f 100644
--- a/src/cmd/cos_gpu_installer_v1/container_build_request.yaml
+++ b/src/cmd/cos_gpu_installer_v1/cloudbuild.yaml
@@ -20,10 +20,10 @@
   args:
   - 'build'
   - '-t'
-  - 'gcr.io/${_PROJECT_ID}/cos-gpu-installer:latest'
+  - 'gcr.io/${_OUTPUT_PROJECT}/cos-gpu-installer-v1:latest'
   - '-t'
-  - 'gcr.io/${_PROJECT_ID}/cos-gpu-installer:${TAG_NAME}'
+  - 'gcr.io/${_OUTPUT_PROJECT}/cos-gpu-installer-v1:${TAG_NAME}'
   - 'cos-gpu-installer-docker/'
 images:
-- 'gcr.io/${_PROJECT_ID}/cos-gpu-installer:latest'
-- 'gcr.io/${_PROJECT_ID}/cos-gpu-installer:${TAG_NAME}'
+- 'gcr.io/${_OUTPUT_PROJECT}/cos-gpu-installer-v1:latest'
+- 'gcr.io/${_OUTPUT_PROJECT}/cos-gpu-installer-v1:${TAG_NAME}'