Simplify `Socket::Addrinfo.getaddrinfo(&)` (#14956) #12216

Job	Run time
check_format	1m 44s
x86_64-gnu-test (1.7.3)	35m 25s
x86_64-gnu-test-preview_mt	5m 28s
x86_64-gnu-test (1.8.2)	32m 50s
deploy_api_docs	2m 11s
x86_64-gnu-test (1.9.2)	33m 36s
x86_64-gnu-test (1.10.1)	33m 18s
x86_64-musl-test	36m 5s
x86_64-gnu-test (1.11.2)	33m 56s
x86_64-gnu-test (1.12.2)	33m 17s
x86_64-gnu-test (1.13.2)	32m 38s
x86_64-gnu-test (1.0.0, FLAGS=-Dwithout_ffi USE_PCRE1=true)	33m 59s
x86_64-gnu-test (1.1.1, FLAGS=-Dwithout_ffi USE_PCRE1=true)	34m 32s
x86_64-gnu-test (1.2.2, USE_PCRE1=true)	35m 45s
x86_64-gnu-test (1.3.2, USE_PCRE1=true)	34m 49s
x86_64-gnu-test (1.4.1, USE_PCRE1=true)	36m 11s
x86_64-gnu-test (1.5.1, USE_PCRE1=true)	36m 15s
x86_64-gnu-test (1.6.2, USE_PCRE1=true)	32m 4s
	8h 44m 3s

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