add `ptp_clock_caps` #70

Job	Run time
Style check	27s
Test tier1 (i686-unknown-linux-gnu, true, ubuntu-24.04)	58s
Check #[cfg]s	12s
Test tier1 (x86_64-unknown-linux-gnu, true, ubuntu-24.04)	53s
Verify build (stable, ubuntu-24.04)	2m 52s
Test tier1 (aarch64-apple-darwin, macos-14)	1m 4s
Verify build (stable, macos-14)	18s
Test tier1 (x86_64-pc-windows-gnu, windows-2022, 64, x86_64)	57s
Verify build (stable, windows-2022)	3m 40s
Test tier1 (x86_64-pc-windows-msvc, windows-2022)	1m 1s
Verify build (nightly, ubuntu-24.04)	14m 30s
Test tier1 (i686-pc-windows-msvc, windows-2022)	1m 1s
Verify build (nightly, macos-14)	56s
Verify build (nightly, windows-2022)	6m 49s
Verify build (1.63.0, ubuntu-24.04)	5m 49s
Verify build (1.63.0, macos-14)	1m 50s
Verify build (1.63.0, windows-2022)	7m 55s
Verify build (beta, ubuntu-24.04)	3m 6s
Test tier2 VM	0s
Test tier2	0s
success	1s
	54m 19s

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