standardize bucket resource names to support characters like dot
standardize bucket resource names to support characters like dot

PiperOrigin-RevId: 311550420

GoogleCloudPlatform/healthcare,GoogleCloudPlatform/healthcare,GoogleCloudPlatform/healthcare,GoogleCloudPlatform/healthcare,GoogleCloudPlatform/healthcare,GoogleCloudPlatform/healthcare,GoogleCloudPlatform/healthcare,GoogleCloudPlatform/healthcare