redis-1.2.2

What's Changed

• Linter fixes (#2075 by @StefanPalashev)
• Add TLS certificate-based authentication support (#2044 by @StefanPalashev)
• add changelog entries for backports (#2077 by @WaffleLapkin)
• Add support for the HOTKEYS commands (#2061 by @StefanPalashev)
• add set_concurrency_limit to ConnectionManagerConfig (#2080 by @jiangzhe)
• add support for setting SO_LINGER on redis sockets (#2086 by @svix-jbrown)
• Support bb8 pool for sentinel client (#2087 by @banthony42)
• add ?Sized bound to impl AsyncPushSender for std::sync::Arc (#2091 by @anatawa12)