provide correct rceBodyRef prop type

flag=none

test plan:
  - specs pass

qa risk: low

Change-Id: Ida72f9874e08caeb7dddad4df8842e01ff42d1ad
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/274053
Reviewed-by: Jeffrey Johnson <jeffrey.johnson@instructure.com>
QA-Review: Jeffrey Johnson <jeffrey.johnson@instructure.com>
Product-Review: Jeffrey Johnson <jeffrey.johnson@instructure.com>
Tested-by: Service Cloud Jenkins <svc.cloudjenkins@instructure.com>

jest/jest-setup.js

@@ -80,7 +80,6 @@ const ignoredErrors = [
   /Invalid prop `outcomeContextId` of type `number` supplied to `ManageOutcomeItem`/,
   /Invalid prop `outcomes.1._id` of type `number` supplied to `OutcomesPopover`/,
   /Invalid prop `outcomesGroup.contextId` of type `number` supplied to `FindOutcomesView`, expected `string`/,
-  /Invalid prop `rceBodyRef` supplied to `MentionDropdownPortal`/,
   /Invalid prop `returnFocusTo` of type `DeprecatedComponent` supplied to `(CourseHomeDialog|HomePagePromptContainer)`/,
   /Invalid prop `selectedDate` of type `date` supplied to `CanvasDateInput`/,
   /Invalid prop `selectedGroupId` of type `array` supplied to `GroupActionDrillDown`/,

ui/shared/rce/plugins/canvas_mentions/components/MentionAutoComplete/MentionDropdown.js

@@ -271,7 +271,7 @@ const MentionUIManager = ({editor, onExited, onFocusedUserChange, rceRef}) => {
 export default MentionUIManager
 
 MentionUIManager.propTypes = {
-  rceRef: PropTypes.object,
+  rceRef: PropTypes.oneOfType([PropTypes.node, PropTypes.object]),
   onFocusedUserChange: PropTypes.func,
   onExited: PropTypes.func,
   editor: PropTypes.object

ui/shared/rce/plugins/canvas_mentions/components/MentionAutoComplete/MentionDropdownPortal.js

@@ -1,4 +1,3 @@
-/* eslint-disable jsx-a11y/click-events-have-key-events */
 /*
  * Copyright (C) 2021 - present Instructure, Inc.
  *
@@ -57,7 +56,7 @@ MentionDropdownPortal.propTypes = {
   /**
    * Array of optons to be presented to user
    */
-  rceBodyRef: PropTypes.node,
+  rceBodyRef: PropTypes.oneOfType([PropTypes.node, PropTypes.object]),
   /**
    * Array of optons to be presented to user
    */