deploy: move WORKSPACE to deploy/ dir
deploy: move WORKSPACE to deploy/ dir

PiperOrigin-RevId: 222113612

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