fix(openapi): update connector-mgmt/v1 OpenAPI document (#186)

Co-authored-by: app-services-ci <app-services-ci@users.noreply.github.com>

Author: app-services-ci

.openapi/connector_mgmt.yaml

@@ -923,6 +923,7 @@ components:
     ConnectorState:
       type: string
       enum:
+        - assigning
         - ready
         - stopped
         - deleted