add `ptp_clock_caps` #74

Job	Run time
Style check	20s
Check #[cfg]s	12s
Verify build (stable, ubuntu-24.04)	28s
Verify build (stable, macos-14)	18s
Test tier1 (i686-unknown-linux-gnu, true, ubuntu-24.04)	40s
Verify build (stable, windows-2022)	24s
Test tier1 (x86_64-unknown-linux-gnu, true, ubuntu-24.04)	39s
Verify build (nightly, ubuntu-24.04)	19s
Test tier1 (aarch64-apple-darwin, macos-14)	56s
Test tier1 (x86_64-pc-windows-gnu, windows-2022, 64, x86_64)	47s
Verify build (nightly, macos-14)	36s
Test tier1 (x86_64-pc-windows-msvc, windows-2022)	51s
Test tier1 (i686-pc-windows-msvc, windows-2022)	41s
Verify build (nightly, windows-2022)	26s
Verify build (1.63.0, ubuntu-24.04)	33s
Verify build (1.63.0, macos-14)	37s
Verify build (1.63.0, windows-2022)	27s
Verify build (beta, ubuntu-24.04)	21s
Test tier2	0s
Test tier2 VM	0s
success	1s
	9m 36s

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