[Update] PUT /managed/contacts/{contactId} (#120)

* Updating Managed Contact schema object to allow nullable group and remove deprecated flag

* Removed deprecated from `consultation_group` for ManagedService obj

Author: hzoppetti

openapi.yaml

@@ -14273,7 +14273,7 @@ components:
               example: null
         group:
           x-linode-filterable: true
-          deprecated: true
+          nullable: true
           type: string
           minLength: 2
           maxLength: 50
@@ -14523,7 +14523,6 @@ components:
             considered up.
           example: it worked
         consultation_group:
-          deprecated: true
           type: string
           minLength: 0
           maxLength: 50