Latest available armeventgrid SDK for Golang does not contain NewCaCertificatesClient

### Link to sample

https://learn.microsoft.com/en-us/rest/api/eventgrid/controlplane-version2023-06-01-preview/ca-certificates/create-or-update?tabs=Go

### Library name and version

github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/eventgrid/armeventgrid/v2 v2.1.1

### Language of the Sample

- [ ] C#/.NET
- [ ] Java
- [ ] JavaScript/TypedScript
- [ ] Python
- [X] Golang
- [ ] Other - Please specify in Issue details field

### Sample Issue Type

- [X] Sample not working
- [ ] Sample missing
- [ ] Do not understand sample

### Issue details

The sample for uploading a CA Certificate to Event Grid Namespace shows to use the `NewCaCertificatesClient()` function. That function doesn't seem to exist in the latest (2.1.1) version of `armeventgrid`. From the linked source code (https://github.com/Azure/azure-sdk-for-go/blob/main/sdk/resourcemanager/eventgrid/armeventgrid/client_factory.go) it appears to exist, but in 2.2.0-beta.1 version, which is not published or publicly available, and therefore unable to upload a certificate.

### Expected behavior

Function to exist in latest package

### Actual behavior

Function is undefined in latest package

### Reproduction Steps

1. go get github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/eventgrid/armeventgrid/v2
2. Copy and paste sample
3. go build

### Environment

Windows 11, go1.18.2, vs code