[GR-18163] Call unblock functions using JNI in CExtInterrupter #4307

Job	Run time
lint	13m 19s
build jvm	6m 35s
build native	14m 0s
ruby/spec on CRuby 3.0	3m 31s
ruby/spec on CRuby 3.1	3m 20s
ruby/spec on CRuby 3.2	2m 48s
test integration	7m 26s
specs :truffle	10m 26s
fast specs	2m 11s
specs :language :core	12m 41s
specs :library :cext :security :command_line :tracepoint	9m 47s
run MRI tests on native	16m 8s
test native	2m 58s
	1h 45m 10s

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