Added `ColumnType::Blob` (#2213) #4234

Job	Run time
Rustfmt	17s
Init	3s
Clippy	29s
Examples (examples/actix_example)	18s
Unit Test	27s
Examples (examples/axum_example)	16s
Examples (examples/basic)	21s
Examples (examples/graphql_example)	22s
Examples (examples/jsonrpsee_example)	19s
Examples (examples/loco_example)	23s
Examples (examples/poem_example)	22s
Examples (examples/proxy_gluesql_example)	20s
Examples (examples/rocket_example)	21s
Examples (examples/rocket_okapi_example)	20s
Examples (examples/salvo_example)	15s
Examples (examples/seaography_example)	21s
Examples (examples/tonic_example)	18s
Compile PostgreSQL (tokio, native-tls)	15s
Compile SQLite (async-std, native-tls)	13s
Compile PostgreSQL (tokio, rustls)	13s
Compile SQLite (async-std, rustls)	11s
Compile MySQL (actix, native-tls)	1s
CLI	0s
Compile MySQL (actix, rustls)	1s
Issues Matrix	0s
Issues	0s
MySQL	1s
MariaDB	1s
SQLite	1s
Postgres	1s
	6m 30s

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