Enable install-testing for MySQL 8.2 #142

Job	Run time
Core running from build / Core running from build / Linux	1m 58s
Core running from src / Core running from src / Linux	2m 2s
Core running from build / Core running from build / Windows	4m 26s
Core running from src / Core running from src / Windows	3m 11s
Core running from build / Core running from build / MacOS	3m 26s
Core running from src / Core running from src / MacOS	3m 16s
Gutenberg running from build / Gutenberg running from build / Linux	12m 55s
Gutenberg running from build / Gutenberg running from build / Windows	10m 56s
Gutenberg running from src / Gutenberg running from src / Linux	11m 16s
Gutenberg running from src / Gutenberg running from src / Windows	18m 25s
Gutenberg running from build / Gutenberg running from build / MacOS	12m 19s
Gutenberg running from src / Gutenberg running from src / MacOS	18m 41s
Slack Notifications	0s
Failed workflow tasks	0s
	1h 42m 51s

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