Add identity to workflow update-options (#656)

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<!-- Describe what has changed in this PR -->
Ddd identity to workflow update-options


<!-- Tell your future self why have you made these changes -->
So that the history event can serve as an audit log as to who set
versioning overrides on the workflow


<!-- Are there any breaking changes on binary or code level? -->
None

<!-- If this breaks the Server, please provide the Server PR to merge
right after this PR was merged. -->
temporalio/temporal#8576

Author: carlydf

openapi/openapiv2.json

@@ -9206,6 +9206,10 @@
         "updateMask": {
           "type": "string",
           "description": "Controls which fields from `workflow_execution_options` will be applied.\nTo unset a field, set it to null and use the update mask to indicate that it should be mutated."
+        },
+        "identity": {
+          "type": "string",
+          "description": "Optional. The identity of the client who initiated this request."
         }
       },
       "description": "Keep the parameters in sync with:\n  - temporal.api.batch.v1.BatchOperationUpdateWorkflowExecutionOptions.\n  - temporal.api.workflow.v1.PostResetOperation.UpdateWorkflowOptions."
@@ -16800,6 +16804,10 @@
             "$ref": "#/definitions/v1Callback"
           },
           "description": "Completion callbacks attached to the running workflow execution."
+        },
+        "identity": {
+          "type": "string",
+          "description": "Optional. The identity of the client who initiated the request that created this event."
         }
       }
     },

openapi/openapiv3.yaml

@@ -13044,6 +13044,9 @@ components:
             Controls which fields from `workflow_execution_options` will be applied.
              To unset a field, set it to null and use the update mask to indicate that it should be mutated.
           format: field-mask
+        identity:
+          type: string
+          description: Optional. The identity of the client who initiated this request.
       description: |-
         Keep the parameters in sync with:
            - temporal.api.batch.v1.BatchOperationUpdateWorkflowExecutionOptions.
@@ -14249,6 +14252,9 @@ components:
           items:
             $ref: '#/components/schemas/Callback'
           description: Completion callbacks attached to the running workflow execution.
+        identity:
+          type: string
+          description: Optional. The identity of the client who initiated the request that created this event.
     WorkflowExecutionSignaledEventAttributes:
       type: object
       properties:

temporal/api/history/v1/message.proto

@@ -797,6 +797,8 @@ message WorkflowExecutionOptionsUpdatedEventAttributes {
     string attached_request_id = 3;
     // Completion callbacks attached to the running workflow execution.
     repeated temporal.api.common.v1.Callback attached_completion_callbacks = 4;
+    // Optional. The identity of the client who initiated the request that created this event.
+    string identity = 5;
 }
 
 // Not used anywhere. Use case is replaced by WorkflowExecutionOptionsUpdatedEventAttributes

temporal/api/workflowservice/v1/request_response.proto

@@ -2036,6 +2036,9 @@ message UpdateWorkflowExecutionOptionsRequest {
     // Controls which fields from `workflow_execution_options` will be applied.
     // To unset a field, set it to null and use the update mask to indicate that it should be mutated.
     google.protobuf.FieldMask update_mask = 4;
+
+    // Optional. The identity of the client who initiated this request.
+    string identity = 5;
 }
 
 message UpdateWorkflowExecutionOptionsResponse {