Add Nexus to GetSystemInfoResponse (#424)

* Add Nexus to GetSystemInfoResponse

* regenerate openapi

* comment

Author: pdoerner

openapi/openapiv2.json

@@ -5137,6 +5137,10 @@
         "countGroupByExecutionStatus": {
           "type": "boolean",
           "title": "True if the server supports count group by execution status"
+        },
+        "nexus": {
+          "type": "boolean",
+          "description": "True if the server supports Nexus operations.\nThis flag is dependent both on server version and for Nexus to be enabled via server configuration."
         }
       },
       "description": "System capability details."

openapi/openapiv3.yaml

@@ -3400,6 +3400,11 @@ components:
         countGroupByExecutionStatus:
           type: boolean
           description: True if the server supports count group by execution status
+        nexus:
+          type: boolean
+          description: |-
+            True if the server supports Nexus operations.
+             This flag is dependent both on server version and for Nexus to be enabled via server configuration.
       description: System capability details.
     GetWorkerBuildIdCompatibilityResponse:
       type: object

temporal/api/workflowservice/v1/request_response.proto

@@ -1008,6 +1008,10 @@ message GetSystemInfoResponse {
         // True if the server supports count group by execution status
         // (-- api-linter: core::0140::prepositions=disabled --)
         bool count_group_by_execution_status = 10;
+
+        // True if the server supports Nexus operations.
+        // This flag is dependent both on server version and for Nexus to be enabled via server configuration.
+        bool nexus = 11;
     }
 }