Fix actor flaky test #6462

Job	Run time
Integration tests (ubuntu-latest)	5m 18s
Code Hygiene	2m 15s
Render tests (ubuntu-latest, 0)	9m 37s
Integration tests (windows-latest)	6m 56s
Render tests (ubuntu-latest, 1)	9m 42s
Render tests (ubuntu-latest, 2)	7m 23s
Unit tests and Coverage	2m 33s
Render tests (windows-latest, 0)	11m 38s
Render tests (windows-latest, 1)	10m 59s
Render tests (windows-latest, 2)	8m 46s
Build tests (ubuntu-latest)	3m 58s
Build tests (windows-latest)	4m 56s
	1h 24m 1s

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