Adjust Cargo.toml #1039

Job	Run time
Test (macOS)	53s
Test (nightly)	1m 7s
Test (stable)	1m 20s
Build docs	47s
Test (beta)	1m 18s
Examples	2m 16s
Test (Windows)	4m 3s
Check minimal versions	51s
Test (native-tls)	1m 2s
MSRV	0s
Test (no default features)	55s
Test (no cache)	55s
Test (no gateway)	51s
Test (unstable Discord API features)	1m 1s
Test (zlib compression)	44s
Test (zstd compression)	47s
Test (zlib and zstd compression)	1m 9s
Test (chrono, chrono)	58s
Test (unstable API + typesize, default unstable typesize, true)	1m 0s
Test (builder without model, builder, true)	55s
Test (unstable Discord API (no default features), unstable, true)	54s
	23m 46s

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