Replace v8 with monocart for coverage #3372

Job	Run time
Unit tests and Coverage	1m 57s
Code Hygiene	1m 53s
Integration tests (ubuntu-latest)	3m 50s
Build tests (ubuntu-latest)	2m 44s
Build tests (windows-latest)	4m 4s
Integration tests (windows-latest)	5m 24s
Render tests (ubuntu-latest, 0)	6m 28s
Render tests (ubuntu-latest, 1)	6m 2s
Render tests (ubuntu-latest, 2)	5m 32s
Render tests (windows-latest, 0)	8m 38s
Render tests (windows-latest, 1)	6m 59s
Render tests (windows-latest, 2)	6m 43s
	1h 0m 14s

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