Bump clap from 4.5.15 to 4.5.18 #209

Job	Run time
build-macos	8m 25s
build-android (aarch64-linux-android)	3m 22s
build-linux-musl (x86_64-unknown-linux-musl)	4m 23s
build-linux (x86_64-unknown-linux-gnu)	3m 57s
build-android (armv7-linux-androideabi)	3m 13s
build-linux-musl (aarch64-unknown-linux-musl)	4m 26s
build-windows (x86_64-pc-windows-msvc)	11m 18s
build-linux (aarch64-unknown-linux-gnu)	4m 29s
build-windows (i686-pc-windows-msvc)	11m 30s
build-linux-musl (armv7-unknown-linux-musleabihf)	4m 37s
build-android (x86_64-linux-android)	3m 15s
build-linux (armv7-unknown-linux-gnueabihf)	4m 9s
	1h 7m 4s

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