Is your feature request related to a problem? Please describe.
Part of: #89429

As part of our effort to migrate to a multi-tenant architecture, we need to ensure our existing events endpoint is tenant-scoped.

Fortunately, the existing endpoint is implemented using SQL, meaning the remaining work to be done is implementing the same endpoint for our tenantAdminServer, where we can use the same eventsHelper function.

Reference PR: #84620, making the Jobs and Job endpoints tenant-scoped

Jira issue: CRDB-20668