Bump github.com/sagernet/sing from 0.5.1 to 0.6.11 #11

Job	Run time
check-assets	4s
build (windows, amd64)	1m 24s
build (freebsd, amd64)	1m 26s
build (linux, 386)	1m 22s
build (freebsd, 386)	1m 24s
build (windows, 386)	1m 22s
build (darwin, amd64)	1m 25s
build (openbsd, 386)	1m 38s
build (openbsd, amd64)	1m 26s
build (linux, arm, 5)	1m 42s
build (android, arm64)	1m 49s
build (darwin, arm64)	1m 33s
build (android, amd64, android-amd64)	2m 24s
build (linux, arm, 7)	1m 24s
build (linux, mips64)	1m 22s
build (windows, arm, 7)	1m 25s
build (linux, arm, 6)	1m 22s
build (windows, arm64)	1m 22s
build (linux, amd64)	1m 22s
build (linux, ppc64)	1m 31s
build (linux, mips64le)	1m 30s
build (linux, mipsle)	2m 32s
build (linux, mips)	2m 29s
build (linux, arm64)	1m 24s
build (linux, riscv64)	1m 26s
build (linux, ppc64le)	1m 29s
build (freebsd, arm, 7)	1m 26s
build (linux, s390x)	1m 29s
build (openbsd, arm, 7)	1m 23s
build (openbsd, arm64)	1m 32s
build (freebsd, arm64)	1m 26s
build (linux, loong64)	1m 23s
	48m 16s

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