Deprecate `Member::distinct` (#3083) #1046

Job	Run time
Examples	3m 51s
Build docs	1m 7s
Check minimal versions	1m 2s
Test (macOS)	1m 38s
MSRV	1m 10s
Test (nightly)	3m 34s
Test (stable)	3m 25s
Test (beta)	3m 17s
Test (Windows)	5m 2s
Test (native-tls)	3m 3s
Test (no default features)	50s
Test (no cache)	3m 11s
Test (no gateway)	2m 4s
Test (unstable Discord API features)	3m 33s
Test (simd-json)	3m 29s
Test (chrono, chrono)	57s
Test (unstable API + typesize, default unstable_discord_api typesize, true)	1m 14s
Test (builder without model, builder, true)	48s
Test (unstable Discord API (no default features), unstable_discord_api, true)	45s
	44m 0s

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