Implemented StableApiDefinition::thread_sleep for TruffleRuby. #889

Job	Run time
Bundle install in Dockerfile	1m 3s
oxi-test (ruby=3.0, os=ubuntu-latest)	58s
oxi-test (ruby=3.2, os=ubuntu-latest)	1m 2s
oxi-test (ruby=3.3, os=ubuntu-latest)	1m 29s
oxi-test (ruby=3.0, os=windows-latest)	5m 40s
oxi-test (ruby=3.2, os=windows-latest)	4m 45s
oxi-test (ruby=3.3, os=windows-latest)	5m 42s
oxi-test (ruby=3.0, os=macos-latest)	50s
oxi-test (ruby=3.2, os=macos-latest)	49s
oxi-test (ruby=3.3, os=macos-latest)	42s
magnus-0.5 (ruby=3.0, os=ubuntu-latest)	1m 17s
magnus-0.5 (ruby=3.2, os=ubuntu-latest)	1m 25s
magnus-0.5 (ruby=3.3, os=ubuntu-latest)	1m 27s
magnus-0.5 (ruby=3.0, os=windows-latest)	4m 21s
magnus-0.5 (ruby=3.2, os=windows-latest)	5m 40s
magnus-0.5 (ruby=3.3, os=windows-latest)	4m 19s
magnus-0.5 (ruby=3.0, os=macos-latest)	33s
magnus-0.5 (ruby=3.2, os=macos-latest)	32s
magnus-0.5 (ruby=3.3, os=macos-latest)	32s
magnus-head (ruby=3.0, os=ubuntu-latest)	2m 28s
magnus-head (ruby=3.2, os=ubuntu-latest)	2m 28s
magnus-head (ruby=3.3, os=ubuntu-latest)	2m 27s
magnus-head (ruby=3.0, os=windows-latest)	5m 43s
magnus-head (ruby=3.2, os=windows-latest)	5m 43s
magnus-head (ruby=3.3, os=windows-latest)	5m 31s
magnus-head (ruby=3.0, os=macos-latest)	35s
magnus-head (ruby=3.2, os=macos-latest)	41s
magnus-head (ruby=3.3, os=macos-latest)	46s
	1h 9m 28s

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