Merge pull request #1306 from G-Rath/use-package_json #530

Job	Run time
check_react_and_ujs (2.7)	41s
test (npm, npm, 2.7, base)	57s
test (npm, npm, 2.7, shakapacker)	1m 46s
test (npm, npm, 2.7, sprockets_3)	1m 17s
test (npm, npm, 2.7, sprockets_4)	1m 15s
test (yarn_classic, yarn, 2.7, base)	1m 2s
test (yarn_classic, yarn, 2.7, shakapacker)	1m 58s
test (yarn_classic, yarn, 2.7, sprockets_3)	1m 17s
test (yarn_classic, yarn, 2.7, sprockets_4)	1m 22s
test (pnpm, pnpm, 2.7, base)	55s
test (pnpm, pnpm, 2.7, shakapacker)	1m 41s
test (pnpm, pnpm, 2.7, sprockets_3)	1m 14s
test (pnpm, pnpm, 2.7, sprockets_4)	1m 13s
test (bun, bun, 2.7, base)	51s
test (bun, bun, 2.7, shakapacker)	1m 38s
test (bun, bun, 2.7, sprockets_3)	1m 16s
test (bun, bun, 2.7, sprockets_4)	1m 16s
	21m 39s

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