Update default theme npm dependencies #15948

Job	Run time
Core running from build / Core running from build / Linux	2m 27s
Core running from src / Core running from src / Linux	2m 22s
Core running from build / Core running from build / Windows	4m 55s
Core running from build / Core running from build / MacOS	3m 4s
Core running from src / Core running from src / Windows	4m 4s
Gutenberg running from build / Gutenberg running from build / Linux	8m 49s
Core running from src / Core running from src / MacOS	2m 22s
Gutenberg running from src / Gutenberg running from src / Linux	8m 52s
Gutenberg running from build / Gutenberg running from build / Windows	12m 29s
Gutenberg running from src / Gutenberg running from src / Windows	11m 51s
Gutenberg running from build / Gutenberg running from build / MacOS	9m 46s
Gutenberg running from src / Gutenberg running from src / MacOS	8m 41s
Slack Notifications	0s
Failed workflow tasks	0s
	1h 19m 42s

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