Implement rb_hash_bulk_insert #4996

Job	Run time
build native	13m 16s
build jvm	6m 18s
lint	13m 41s
ruby/spec on CRuby 3.0	3m 27s
ruby/spec on CRuby 3.1	3m 39s
ruby/spec on CRuby 3.2	3m 15s
test integration	9m 44s
fast specs	2m 16s
specs :truffle	14m 32s
specs :language :core	12m 30s
specs :library :cext :security :command_line :tracepoint	9m 22s
test native	3m 1s
run MRI tests on native	14m 58s
	1h 49m 59s

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