Fix missing SO_* values #780

Job	Run time
Check #[cfg]s	17s
Test tier1 (i686-unknown-linux-gnu, true, ubuntu-24.04)	40s
Verify build (stable, ubuntu-24.04)	31s
Test tier1 (x86_64-unknown-linux-gnu, true, ubuntu-24.04)	42s
Style check	19s
Verify build (stable, macos-14)	20s
Test tier1 (aarch64-apple-darwin, macos-14)	26s
Verify build (stable, windows-2022)	25s
Test tier1 (x86_64-pc-windows-gnu, windows-2022, 64, x86_64)	37s
Verify build (nightly, ubuntu-24.04)	17s
Test tier1 (x86_64-pc-windows-msvc, windows-2022)	37s
Test tier1 (i686-pc-windows-msvc, windows-2022)	38s
Verify build (nightly, macos-14)	17s
Verify build (nightly, windows-2022)	27s
Verify build (1.63.0, ubuntu-24.04)	31s
Verify build (1.63.0, macos-14)	34s
Verify build (1.63.0, windows-2022)	27s
Verify build (beta, ubuntu-24.04)	32s
Test tier2	0s
Test tier2 VM	0s
success	1s
	8m 38s

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