Upgrade minitest #402

Job	Run time
test (ubuntu-latest, 2.5)	19s
test (ubuntu-latest, 2.6)	48s
test (ubuntu-latest, 2.7)	53s
test (ubuntu-latest, 3)	36s
test (ubuntu-latest, 3.1)	38s
test (ubuntu-latest, 3.2)	37s
test (ubuntu-latest, 3.3)	37s
test (ubuntu-latest, head)	38s
test (ubuntu-latest, jruby)	2m 45s
test (ubuntu-latest, jruby-head)	2m 49s
test (ubuntu-latest, truffleruby)	2m 25s
test (ubuntu-latest, truffleruby-head)	2m 44s
test (windows-latest, 2.5)	1m 45s
test (windows-latest, 2.6)	2m 32s
test (windows-latest, 2.7)	2m 29s
test (windows-latest, 3)	2m 52s
test (windows-latest, 3.1)	1m 48s
test (windows-latest, 3.2)	2m 5s
test (windows-latest, 3.3)	2m 6s
test (windows-latest, head)	1m 36s
test (windows-latest, jruby)	1m 21s
test (windows-latest, jruby-head)	1m 47s
test (macos-latest, 2.5)	48s
test (macos-latest, 2.6)	1m 22s
test (macos-latest, 2.7)	1m 55s
test (macos-latest, 3)	52s
test (macos-latest, 3.1)	50s
test (macos-latest, 3.2)	1m 1s
test (macos-latest, 3.3)	43s
test (macos-latest, head)	50s
test (macos-latest, jruby)	2m 45s
test (macos-latest, jruby-head)	2m 52s
test (macos-latest, truffleruby)	5m 35s
test (macos-latest, truffleruby-head)	3m 26s
	59m 9s

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