Add tests for gcp logging cache update
There aren't any tests in ee/spec/frontend/audit_events/graphql/cache_update_spec.js
for the gcp cloud logging destination methods.
Implementation
Add tests for addGcpLoggingAuditEventsStreamingDestination
and removeGcpLoggingAuditEventsStreamingDestination
in ee/app/assets/javascripts/audit_events/graphql/cache_update.js
.