Merge pull request #1430 from Ganiredi/automated-cherry-pick-of-#1421-upstream-release-1.36

Automated cherry pick of #1421: cloudbuild: upgrade to E2_HIGHCPU_32 to fix session timeout

Author: k8s-ci-robot

cloudbuild.yaml

@@ -2,7 +2,7 @@
 options:
   dynamic_substitutions: true
   substitution_option: ALLOW_LOOSE
-  machineType: 'N1_HIGHCPU_8'
+  machineType: 'E2_HIGHCPU_32'
 steps:
   - name: gcr.io/cloud-builders/git
     args: ['fetch', '--tags']