deploys with 15.17.0 fail without explicit `setGlobalOptions({ region: 'us-central1' })` with vpcConnector

Looks like our CI is using the latest 15.17.0 somehow and deploys are failing today when they worked fine on the previous release.

It works if including `setGlobalOptions({ region: 'us-central1' })` in the index.ts file but this seems like a regression?

### [REQUIRED] Environment info

**firebase-tools:** 15.17.0

**Platform:** Ubuntu (github CI)

### [REQUIRED] Test case
Deploy a function like this:
```
export const jobCreated = onDocumentCreated(
{
document: `jobs/{jobId}`,
vpcConnector: 'connector-name',
vpcConnectorEgressSettings: 'PRIVATE_RANGES_ONLY',
},
onCreateJob
)
```

### [REQUIRED] Steps to reproduce

Try deploying a function defined like that without `setGlobalOptions({ region: 'us-central1' })`

These are existing functions already in `us-central1` - the same region as the VPC connector.

### [REQUIRED] Expected behavior

Function deploys as expected.

### [REQUIRED] Actual behavior

Errors with: `functions: Request to https://cloudfunctions.googleapis.com/v2/projects/%%service-url%% had HTTP Error: 400, Could not update Cloud Run service servicename. spec.template.metadata.annotations: The target region us-central1 for the deployment must be the same as the reg`