build: run e2e tests with bazel rbe

* Similar to other Bazel jobs, we should enable remote execution for the e2e tests. These currently build Angular Material in order to serve the e2e-app, so this could slow-down CI. Ideally remote caching would be also accepted, but this will be discussed soon.

Author: devversion

.circleci/config.yml

@@ -152,9 +152,12 @@ jobs:
   e2e_tests:
     <<: *job_defaults
     resource_class: xlarge
+    environment:
+      GCP_DECRYPT_TOKEN: *gcp_decrypt_token
     steps:
       - *checkout_code
       - *restore_cache
+      - *setup_bazel_remote_execution
 
       - run: bazel test e2e/...