Expose `get_xxx_connection_pool` by default #2233 #4252

Job	Run time
Rustfmt	16s
Examples (examples/actix_example)	2m 27s
Init	8s
Examples (examples/axum_example)	2m 46s
Clippy	1m 22s
Examples (examples/basic)	1m 9s
Unit Test	3m 40s
Examples (examples/graphql_example)	2m 32s
Examples (examples/jsonrpsee_example)	2m 45s
Examples (examples/loco_example)	3m 16s
Examples (examples/poem_example)	2m 13s
Examples (examples/proxy_gluesql_example)	1m 18s
Examples (examples/rocket_example)	3m 4s
Examples (examples/rocket_okapi_example)	3m 50s
Examples (examples/salvo_example)	2m 45s
Examples (examples/seaography_example)	2m 35s
Examples (examples/tonic_example)	2m 53s
Compile SQLite (async-std, native-tls)	2m 54s
Compile MySQL (actix, native-tls)	2m 46s
Compile PostgreSQL (tokio, native-tls)	2m 52s
Compile SQLite (async-std, rustls)	2m 59s
Compile PostgreSQL (tokio, rustls)	3m 15s
CLI	0s
Compile MySQL (actix, rustls)	2m 56s
Issues Matrix	0s
Issues	0s
MariaDB (10.6, actix, native-tls)	2m 22s
MySQL (8, actix, native-tls)	4m 16s
MySQL (5.7, actix, native-tls)	3m 24s
Postgres (14.4, tokio, native-tls)	6m 41s
SQLite (async-std, native-tls)	4m 33s
SQLite (async-std, rustls)	4m 30s
	1h 22m 27s

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