Fix repository link in Cargo.toml #355

Job	Run time
Alpine Linux	2m 12s
FreeBSD-x86_64 with rust stable	2m 4s
Linux-x86_64 with rust stable	3m 11s
Linux-x86_64 (rustls-native-roots) with rust stable	2m 19s
Linux-x86_64 (native-tls) with rust stable	3m 8s
Linux-x86_64 (native-tls-vendored) with rust stable	4m 9s
Linux-aarch64 with rust stable	2m 30s
Linux-arm with rust stable	2m 29s
Linux-i686 with rust stable	2m 4s
Linux-powerpc with rust stable	1m 59s
Linux-powerpc64 with rust stable	2m 2s
Linux-powerpc64le with rust stable	2m 5s
Linux-riscv64 with rust stable	2m 18s
Linux-s390x with rust stable	1m 58s
NetBSD-x86_64 with rust stable	2m 15s
Windows-aarch64 with rust stable	4m 56s
Windows-i686 with rust stable	4m 52s
Windows-x86_64 with rust stable	6m 53s
macOS-x86_64 with rust stable	2m 27s
macOS-aarch64 with rust stable	1m 20s
Linux-x86_64 with rust beta	3m 24s
Linux-x86_64 with rust nightly	3m 25s
	1h 4m 0s

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