Update cloudbuild image

The image used in the postsubmit job that builds staging images was outdated.
It had an image with go1.18 and could not build the image.

Signed-off-by: Lennart Jern <[email protected]>

Author: lentzi90

cloudbuild-nightly.yaml

@@ -4,7 +4,7 @@ options:
   substitution_option: ALLOW_LOOSE
   machineType: 'N1_HIGHCPU_8'
 steps:
-  - name: 'gcr.io/k8s-staging-test-infra/gcb-docker-gcloud:v20220609-2e4c91eb7e'
+  - name: 'gcr.io/k8s-staging-test-infra/gcb-docker-gcloud:v20241229-5dc092c636'
     entrypoint: make
     env:
     - DOCKER_CLI_EXPERIMENTAL=enabled

cloudbuild.yaml

@@ -4,7 +4,7 @@ options:
   substitution_option: ALLOW_LOOSE
   machineType: 'N1_HIGHCPU_8'
 steps:
-  - name: 'gcr.io/k8s-staging-test-infra/gcb-docker-gcloud:v20220609-2e4c91eb7e'
+  - name: 'gcr.io/k8s-staging-test-infra/gcb-docker-gcloud:v20241229-5dc092c636'
     entrypoint: make
     env:
     - DOCKER_CLI_EXPERIMENTAL=enabled