test

Bump up 5.2.1 #164

Job	Run time
ruby-versions / Generate Ruby versions	9s
test (2.5, ubuntu-latest)	44s
test (2.5, windows-latest)	2m 45s
test (2.6, ubuntu-latest)	50s
test (2.6, macos-latest)	59s
test (2.6, windows-latest)	4m 9s
test (2.7, ubuntu-latest)	48s
test (2.7, macos-latest)	49s
test (2.7, windows-latest)	3m 22s
test (3.0, ubuntu-latest)	25s
test (3.0, macos-latest)	20s
test (3.0, windows-latest)	1m 36s
test (3.1, ubuntu-latest)	25s
test (3.1, macos-latest)	19s
test (3.1, windows-latest)	1m 49s
test (3.2, ubuntu-latest)	24s
test (3.2, macos-latest)	22s
test (3.2, windows-latest)	3m 7s
test (3.3, ubuntu-latest)	30s
test (3.3, macos-latest)	19s
test (3.3, windows-latest)	2m 5s
test (head, ubuntu-latest)	31s
test (head, macos-latest)	21s
test (head, windows-latest)	1m 42s
test (jruby, ubuntu-latest)	1m 15s
test (jruby, macos-latest)	1m 32s
test (jruby, windows-latest)	2m 31s
test (jruby-head, ubuntu-latest)	1m 38s
test (jruby-head, macos-latest)	1m 8s
test (jruby-head, windows-latest)	2m 32s
test (windows-latest, ucrt)	1m 34s
test (windows-latest, mingw)	1m 41s
test (windows-latest, mswin)	2m 44s
test (macos-13, 2.5)	1m 47s
	47m 12s

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