changefeedccl: TestChangefeedWorksOnRBRChange incorrectly skips using secondary tenants

**Describe the problem**

in `changefeedccl > changefeed_test.go`:

```go
// Tenants skipped because of:
//
// error executing 'ALTER DATABASE d PRIMARY REGION
// "us-east-1"': pq: get_live_cluster_regions: unimplemented:
// operation is unsupported inside virtual clusters
opts ≔ []feedTestOption{
feedTestNoTenants,
feedTestEnterpriseSinks,
withArgsFn(withTestServerRegion),
}

```

**Expected behavior**

Since MR statements can be used from secondary tenants (with suitable capability and cluster setting override), this test should be made to work this way.

Epic: CRDB-26687

Jira issue: CRDB-30915