REST API: Add support for search_columns argument to the REST API #12247

Job	Run time
Core running from build / Core running from build / Linux	2m 14s
Core running from src / Core running from src / Linux	2m 2s
Core running from build / Core running from build / Windows	3m 55s
Core running from src / Core running from src / Windows	3m 27s
Core running from build / Core running from build / MacOS	2m 39s
Core running from src / Core running from src / MacOS	2m 29s
Gutenberg running from build / Gutenberg running from build / Linux	8m 28s
Gutenberg running from src / Gutenberg running from src / Linux	8m 17s
Gutenberg running from build / Gutenberg running from build / Windows	10m 57s
Gutenberg running from src / Gutenberg running from src / Windows	11m 10s
Gutenberg running from build / Gutenberg running from build / MacOS	7m 52s
Gutenberg running from src / Gutenberg running from src / MacOS	10m 11s
Slack Notifications	0s
Failed workflow tasks	0s
	1h 13m 41s

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