test

Bump up 5.2.1 #165

Job	Run time
ruby-versions / Generate Ruby versions	2s
test (2.5, ubuntu-latest)	52s
test (2.5, windows-latest)	3m 52s
test (2.6, ubuntu-latest)	49s
test (2.6, macos-latest)	47s
test (2.6, windows-latest)	3m 53s
test (2.7, ubuntu-latest)	48s
test (2.7, macos-latest)	57s
test (2.7, windows-latest)	3m 43s
test (3.0, ubuntu-latest)	21s
test (3.0, macos-latest)	23s
test (3.0, windows-latest)	2m 0s
test (3.1, ubuntu-latest)	31s
test (3.1, macos-latest)	21s
test (3.1, windows-latest)	1m 29s
test (3.2, ubuntu-latest)	27s
test (3.2, macos-latest)	19s
test (3.2, windows-latest)	1m 59s
test (3.3, ubuntu-latest)	22s
test (3.3, macos-latest)	16s
test (3.3, windows-latest)	2m 53s
test (head, ubuntu-latest)	21s
test (head, macos-latest)	18s
test (head, windows-latest)	1m 42s
test (jruby, ubuntu-latest)	1m 21s
test (jruby, macos-latest)	1m 4s
test (jruby, windows-latest)	3m 2s
test (jruby-head, ubuntu-latest)	1m 29s
test (jruby-head, macos-latest)	1m 7s
test (jruby-head, windows-latest)	2m 44s
test (windows-latest, ucrt)	1m 17s
test (windows-latest, mingw)	1m 58s
test (windows-latest, mswin)	2m 35s
test (macos-13, 2.5)	1m 36s
	47m 38s

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