Bump librt from 0.7.7 to 0.7.8 (#11963) #2256

Job	Run time
Generate llhttp sources	8s
Linter	1m 1s
Benchmark	6m 36s
Test (3.10, macos, false)	3m 52s
Test (3.11, macos, false)	3m 51s
Test (3.10, ubuntu, false)	3m 45s
Test (3.10, windows, false)	1s
Test (3.12, windows, false)	3m 44s
Test (3.13, ubuntu, false)	1s
Test (3.11, ubuntu, false)	3m 37s
Test (3.13, Y, ubuntu, false)	3m 48s
Test (3.12, macos, false)	3m 52s
Test (pypy-3.11, Y, ubuntu, false)	3m 48s
Test (3.13, macos, false)	3m 52s
Test (3.14, macos, false)	3m 52s
Test (3.13, windows, false)	2m 52s
Test (3.10, Y, ubuntu, false)	3m 49s
Test (3.12, ubuntu, false)	3m 43s
Test (3.14, windows, false)	3m 35s
Test (3.14, ubuntu, false)	3m 50s
Test (3.11, windows, false)	2m 52s
Test (ubuntu, 3.14t, false)	3m 33s
Test (3.11, Y, ubuntu, false)	2m 47s
Test (3.14, Y, ubuntu, false)	1s
Test (3.12, Y, ubuntu, false)	3m 35s
check	2s
Tarball	0s
Pre-Deploy	0s
Build wheels on ${{ matrix.os }} ${{ matrix.qemu }} ${{ matrix.musl }}	0s
Deploy	0s
	1h 16m 27s

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