Update to ip4s 3.8.0-RC3 #5873

Job	Run time
Test I/O on macOS (macos-14, temurin@17, ioJS)	3m 16s
Test I/O on macOS (macos-14, temurin@17, ioNative)	5m 9s
Generate Site (ubuntu-22.04, temurin@17)	2m 43s
Submit Dependencies (ubuntu-22.04, temurin@17)	1m 55s
Test I/O on macOS (macos-14, temurin@17, ioJVM)	5m 53s
Test (ubuntu-latest, 2.12, temurin@17, rootJS)	7m 5s
Test (ubuntu-latest, 2.13, temurin@17, rootJVM)	11m 2s
Test (ubuntu-latest, 2.13, temurin@17, rootNative)	10m 16s
Test (ubuntu-latest, 2.12, temurin@17, rootJVM)	10m 22s
Test (ubuntu-latest, 2.13, temurin@17, rootJS)	6m 46s
Test (ubuntu-latest, 3, temurin@17, rootJS)	8m 10s
Test (ubuntu-latest, 2.12, temurin@17, rootNative)	9m 40s
Test (ubuntu-latest, 3, temurin@17, rootNative)	9m 27s
Test (ubuntu-latest, 3, temurin@17, rootJVM)	11m 10s
Test (ubuntu-latest, 2.13, temurin@21, rootJVM)	8m 26s
Publish Artifacts	-1s
	1h 51m 19s

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