curl: enable libpsl+libidn2; libpsl: switch from icu to libidn2, allow external public-suffix-list #43897

Job	Run time
Lint templates	45s
Build packages (x86_64, x86_64, glibc, linux/amd64, 1)	17m 18s
Build packages (i686, i686, glibc, linux/386, 1)	17m 40s
Build packages (aarch64, x86_64, glibc, linux/amd64, 0)	5m 45s
Build packages (armv7l, x86_64, glibc, linux/amd64, 0)	4m 59s
Build packages (x86_64-musl, x86_64-musl, musl, linux/amd64, 1)	17m 25s
Build packages (armv6l-musl, x86_64-musl, musl, linux/amd64, 0)	4m 37s
Build packages (aarch64-musl, x86_64-musl, musl, linux/amd64, 0)	4m 54s
	1h 13m 23s

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