Refactor ConnectOptions to use FromStr and update auth plugin names #11

Job	Run time
clippy (sqlx-oldapi) • runtime-tokio-rustls,sqlite,macros	2m 36s
clippy (sqlx-oldapi) • runtime-tokio-rustls,postgres,macros	2m 25s
clippy (sqlx-oldapi) • runtime-async-std-rustls,postgres,macros	2m 46s
clippy (sqlx-rt-oldapi) • runtime-tokio-native-tls	35s
clippy (sqlx-core-oldapi) • postgres • runtime-tokio-rustls	1m 26s
clippy (sqlx-rt-oldapi) • runtime-async-std-rustls	57s
clippy (sqlx-rt-oldapi) • runtime-async-std-native-tls	37s
clippy (sqlx-rt-oldapi) • runtime-tokio-rustls	33s
clippy (sqlx-core-oldapi) • sqlite • runtime-tokio-rustls	1m 19s
clippy (sqlx-core-oldapi) • any • runtime-tokio-rustls	1m 29s
clippy (sqlx-oldapi) • runtime-tokio-rustls,mysql,macros	2m 29s
clippy (sqlx-core-oldapi) • mysql • runtime-tokio-rustls	1m 15s
clippy (sqlx-core-oldapi) • mssql • runtime-tokio-rustls	1m 38s
	20m 5s

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