Expose socket option SO_RCVBUFFORCE #4304

Job	Run time
Check selected Tier 3 platforms (nightly)	32s
Check (stable)	2m 31s
Check nightly-only targets (nightly)	23s
Check (nightly)	2m 40s
Check --no-default-features (nightly)	55s
Check (1.63)	2m 41s
Rustfmt	7s
Test rustix_use_experimental_asm (powerpc64le-linux)	1m 8s
Test (ubuntu)	31s
Test use-libc (ubuntu)	40s
Test (ubuntu-20.04)	2s
Test use-libc (i686-linux)	1m 11s
Test (i686-linux)	1s
Test use-libc (aarch64-linux)	1m 6s
Test (aarch64-linux)	29s
Test (powerpc64le-linux)	31s
Test (riscv64-linux)	26s
Test use-libc (powerpc64le-linux)	54s
Test (s390x-linux)	25s
Test use-libc (riscv64-linux)	1m 3s
Test (arm-linux)	26s
Test use-libc (arm-linux)	1m 10s
Test (ubuntu-stable)	30s
Test (i686-linux-stable)	30s
Test (aarch64-linux-stable)	21s
Test (riscv64-linux-stable)	23s
Test (s390x-linux-stable)	24s
Test (powerpc64le-linux-stable)	26s
Test (arm-linux-stable)	23s
Test (ubuntu-1.63)	31s
Test (i686-linux-1.63)	28s
Test (aarch64-linux-1.63)	31s
Test (riscv64-linux-1.63)	1s
Test (s390x-linux-1.63)	30s
Test (powerpc64le-linux-1.63)	30s
Test (arm-linux-1.63)	3s
Test (macos-latest)	16s
Test (macos-12)	30s
Test (windows)	17s
Test (windows-2019)	3s
Test (musl)	32s
	27m 1s

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