[Actions] Add support for system actions in Rules APIs

x-pack/plugins/actions/server/actions_client/actions_client.mock.ts

@@ -18,6 +18,7 @@ const createActionsClientMock = () => {
     delete: jest.fn(),
     update: jest.fn(),
     getAll: jest.fn(),
+    getAllSystemActions: jest.fn(),
     getBulk: jest.fn(),
     getOAuthAccessToken: jest.fn(),
     execute: jest.fn(),

x-pack/plugins/actions/server/actions_client/actions_client.ts

@@ -90,6 +90,7 @@ import {
 } from '../lib/get_execution_log_aggregation';
 import { connectorFromSavedObject, isConnectorDeprecated } from '../application/connector/lib';
 import { ListTypesParams } from '../application/connector/methods/list_types/types';
+import { getAllSystemActions } from '../application/connector/methods/get_all/get_all';
 
 interface ActionUpdate {
   name: string;
@@ -481,6 +482,13 @@ export class ActionsClient {
     return getAll({ context: this.context, includeSystemActions });
   }
 
+  /**
+   * Get all system connectors
+   */
+  public async getAllSystemActions(): Promise<FindConnectorResult[]> {
+    return getAllSystemActions({ context: this.context });
+  }
+
   /**
    * Get bulk actions with in-memory list
    */