tokio-postgres-rustls

• Update rustls to 0.23 (thanks @aumetra!)

• Update x509-certificate to 0.23 to avoid pulling in multiple versions of ring. Thanks @serprex

• Fixed the SCRAM channel binding check to use the correct digest based on the server certificate (thanks @JamesGuthrie)
• Updated rustls to 0.22 (thanks @ol-teuto)
• Updated ring to 0.17 (thanks @fnichol)

• Updated rustls to 0.20 (thanks @UjOwtuc!)

Deferred failure in make_tls_connect (e.g. due to an invalid/missing hostname) until establishing the TLS connection is actually attempted. This is consistent with the behaviour of other tokio-postgres TLS integrations, and allows using SslMode::Disable to e.g. connect to a UNIX socket whilst still having tokio-postgres-rustls as the chosen TLS library for tokio-postgres.

Updated to Tokio 1

• Updated to tokio 0.3, rustls 0.19, tokio-postgres 0.6, tokio-rustls 0.21.

Updated to rustls 0.18 and tokio-rustls 0.14.

Updated to rustls 0.17 and tokio-rustls 0.13. Marked the TlsConnect Future as Send.

Made MakeRustlsConnect Clone to ease its use in connection pools. Cloning MakeRustlsConnect is very cheap since the struct contains only an Arc.

Updated to tokio 0.2.x and tokio-postgres 0.5.x, and updated all other deps to latest versions.