Test

exclude `TestRDocRubyGemsHook` at job of ruby-core #19

Job	Run time
lint	17s
ruby-versions / Generate Ruby versions	3s
test (3.0, ubuntu-latest)	23s
test (3.0, macos-latest)	22s
test (3.0, windows-latest)	1m 19s
test (3.1, ubuntu-latest)	29s
test (3.1, macos-latest)	22s
test (3.1, windows-latest)	1m 26s
test (3.2, ubuntu-latest)	25s
test (3.2, macos-latest)	21s
test (3.2, windows-latest)	2m 52s
test (3.3, ubuntu-latest)	23s
test (3.3, macos-latest)	24s
test (3.3, windows-latest)	2m 30s
test (head, ubuntu-latest)	33s
test (head, macos-latest)	21s
test (head, windows-latest)	1m 30s
test (jruby, ubuntu-latest)	1m 52s
test (jruby, macos-latest)	1m 13s
test (jruby-head, ubuntu-latest)	1m 52s
test (jruby-head, macos-latest)	1m 14s
test (truffleruby, ubuntu-latest)	2m 21s
test (truffleruby, macos-latest)	1m 42s
test (truffleruby-head, ubuntu-latest)	3m 12s
test (truffleruby-head, macos-latest)	2m 6s
	29m 32s

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