Fix failing test in vue 3 mode

What does this MR do and why?

Describe in detail what your merge request does and why.

What was cleaned up from epic:

1. Remove Vue.set

Error: Unexpected calls to console (1) with:
	
	[1] warn: [Vue warn]: Property "currentScope" was accessed during render but is not defined on instance.,
	, at <Anonymous,key=5,deploy-key=,[object Object],project-id=null,>,
	, at <Anonymous,title="test",keys=,[object Object],showHelpBox=true, ...,>,
	, at <VTUROOT>
	

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NO VISUAL CHANGES

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

1. Run test un vue 3 mode VUE_VERSION=3 yarn jest --watch
2. Checkout branch
3. Run test un vue 3 mode VUE_VERSION=3 yarn jest --watch

MR acceptance checklist

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• I have evaluated the MR acceptance checklist for this MR.