Update swagger.yaml

Update swagger to add required parameter for creating voip

lib/swagger/swagger.yaml

@@ -1099,6 +1099,8 @@ paths:
                   example: my US sip trunking provider
                 account_sid:
                   type: string
+                service_provider_sid:    
+                  type: string          
                 application_sid:
                   type: string
                 e164_leading_plus:
@@ -6215,4 +6217,4 @@ components:
             type: string
 
 security:
-  - bearerAuth: []
+  - bearerAuth: []