Feature: Add `read_post_meta` capability. #10058

Job	Run time
Core running from build / Core running from build / Linux	2m 5s
Core running from src / Core running from src / Linux	1m 58s
Core running from build / Core running from build / Windows	3m 13s
Core running from src / Core running from src / Windows	3m 24s
Core running from build / Core running from build / MacOS	1m 43s
Core running from src / Core running from src / MacOS	1m 50s
Gutenberg running from src / Gutenberg running from src / Linux	8m 46s
Gutenberg running from build / Gutenberg running from build / Linux	8m 12s
Gutenberg running from build / Gutenberg running from build / Windows	11m 49s
Gutenberg running from src / Gutenberg running from src / Windows	12m 48s
Gutenberg running from build / Gutenberg running from build / MacOS	12m 28s
Gutenberg running from src / Gutenberg running from src / MacOS	7m 27s
Slack Notifications	0s
Failed workflow tasks	0s
	1h 15m 43s

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