Fix `tcp_socket::type()` race #2385

Job	Run time
Linux [UBSAN] [lmdb \| clang]	41m 1s
macOS [UBSAN] [lmdb \| clang]	39m 42s
Linux [ASAN] [lmdb \| clang]	42m 16s
macOS [ASAN] [lmdb \| clang]	35m 28s
Linux [ASAN_INT] [lmdb \| clang] (Errors Ignored)	43m 57s
macOS [TSAN] [lmdb \| clang]	40m 32s
Linux [TSAN] [lmdb \| clang]	42m 3s
macOS [UBSAN] [rocksdb \| clang]	54m 19s
Linux [LEAK] [lmdb \| clang]	43m 9s
macOS [ASAN] [rocksdb \| clang]	51m 15s
Linux [UBSAN] [rocksdb \| clang]	54m 0s
macOS [TSAN] [rocksdb \| clang]	58m 43s
Linux [ASAN] [rocksdb \| clang]	1h 0m 25s
Linux [ASAN_INT] [rocksdb \| clang] (Errors Ignored)	58m 11s
Linux [LEAK] [rocksdb \| clang]	57m 20s
	12h 2m 21s

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