[Bug]: Clearing a users MobilePhone field appears impossible in the TypeScript Client

[rod-martens-alida]

What happened?

Patching the User record with a null mobilePhone like so

  --url https://alida-stage.fusionauth.io/api/user/618d8d81-4d8c-413e-98d5-ad26013add3b \
  --header 'authorization: <apikey>' \
  --header 'content-type: application/json' \
  --header 'x-fusionauth-tenantid: 660c4985-c328-361f-f3e1-0e808e152c2e' \
  --data '{
  "user": {
    "mobilePhone": null
  }
}'``` clears the field.  
However the User definition here https://github.com/FusionAuth/fusionauth-typescript-client/blob/develop/src/FusionAuthClient.ts#L12207 
Only allows undefined (which doesn't modify) or a valid phone number.

### Version

1.61.2

### Affects Versions

_No response_

### Alternatives / Workarounds

separate by PATCH for a null `mobilePhone` using `fetch`