Add `Files.walkWithAttributes` #4876

Job	Run time
Build and Test (ubuntu-latest, 2.12, temurin@17, rootJS)	6m 56s
Build and Test (ubuntu-latest, 2.12, temurin@17, rootJVM)	8m 37s
Submit Dependencies	0s
Build and Test (ubuntu-latest, 2.12, temurin@17, rootNative)	11m 16s
Test I/O on macOS (macos-latest, temurin@17, ioJS)	2m 56s
Build and Test (ubuntu-latest, 2.13, temurin@17, rootJS)	6m 16s
Test I/O on macOS (macos-latest, temurin@17, ioJVM)	6m 53s
Build and Test (ubuntu-latest, 2.13, temurin@17, rootJVM)	8m 57s
Test I/O on macOS (macos-latest, temurin@17, ioNative)	8m 10s
Build and Test (ubuntu-latest, 2.13, temurin@17, rootNative)	11m 32s
Generate Site (ubuntu-latest, temurin@17)	1m 44s
Build and Test (ubuntu-latest, 3, temurin@17, rootJS)	6m 52s
Build and Test (ubuntu-latest, 3, temurin@17, rootJVM)	9m 8s
Build and Test (ubuntu-latest, 3, temurin@17, rootNative)	11m 15s
Publish Artifacts	0s
	1h 40m 32s

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