The PHONE_NUMBER infoType functionality that was previously only accessible by setting InfoType.version to latest has been promoted to be the default detection model for this infoType

## Change The `PHONE_NUMBER` [infoType](https://cloud.google.com/dlp/docs/infotypes-reference) functionality that was previously only accessible by setting [InfoType.version](https://cloud.google.com/dlp/docs/reference/rest/v2/InfoType) to `latest` has been promoted to be the default detection model for this infoType. The new model includes `US_TOLLFREE_PHONE_NUMBER` findings as type `PHONE_NUMBER` in the scan results. To enable the new functionality, leave [InfoType.version](https://cloud.google.com/dlp/docs/reference/rest/v2/InfoType) unset, or set it to `latest` or `stable`. To use the old functionality, set [InfoType.version](https://cloud.google.com/dlp/docs/reference/rest/v2/InfoType) to `legacy`. You can continue to use the legacy functionality for 90 days.