feat: Add proxy connection type #3851

Job	Run time
Init	4s
Clippy	2m 9s
Rustfmt	23s
Examples Matrix	4s
Unit Test	6m 38s
Compile SQLite (async-std, native-tls)	6m 59s
Compile MySQL (actix, native-tls)	6m 11s
Compile SQLite (async-std, rustls)	6m 41s
Compile MySQL (actix, rustls)	6m 44s
Compile PostgreSQL (tokio, native-tls)	6m 54s
CLI	0s
Compile PostgreSQL (tokio, rustls)	7m 37s
Issues Matrix	0s
Issues	0s
Examples (examples/salvo_example)	6m 29s
Examples (examples/axum_example)	4m 19s
Examples (examples/proxy_gluesql_example)	3m 38s
Examples (examples/proxy_wasmtime_example)	11m 14s
Examples (examples/graphql_example)	5m 24s
Examples (examples/basic)	2m 24s
Examples (examples/rocket_okapi_example)	5m 39s
Examples (examples/poem_example)	5m 10s
Examples (examples/jsonrpsee_example)	5m 37s
Examples (examples/proxy_surrealdb_example)	5m 44s
Examples (examples/actix_example)	4m 24s
Examples (examples/tonic_example)	4m 44s
Examples (examples/seaography_example)	5m 4s
Examples (examples/actix3_example)	4m 9s
Examples (examples/rocket_example)	6m 38s
MySQL (8, actix, native-tls)	8m 18s
MariaDB (10.6, actix, native-tls)	4m 11s
MySQL (5.7, actix, native-tls)	7m 10s
SQLite (async-std, native-tls)	4m 56s
SQLite (async-std, rustls)	4m 55s
Postgres (14.4, tokio, native-tls)	9m 59s
	2h 50m 30s

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