upgrade to Axum 0.7 #3900

Job	Run time
Rustfmt	15s
Examples Matrix	3s
Init	4s
Clippy	1m 24s
Unit Test	3m 20s
Compile PostgreSQL (tokio, native-tls)	3m 14s
Compile MySQL (actix, native-tls)	3m 9s
Compile PostgreSQL (tokio, rustls)	3m 20s
Compile MySQL (actix, rustls)	3m 9s
Compile SQLite (async-std, native-tls)	3m 15s
CLI	0s
Compile SQLite (async-std, rustls)	3m 19s
Issues Matrix	0s
Issues	0s
Examples (examples/basic)	1m 19s
Examples (examples/axum_example)	2m 40s
Examples (examples/actix_example)	2m 42s
Examples (examples/jsonrpsee_example)	2m 48s
Examples (examples/actix3_example)	3m 1s
Examples (examples/tonic_example)	2m 36s
Examples (examples/graphql_example)	3m 1s
Examples (examples/rocket_example)	3m 22s
Examples (examples/seaography_example)	2m 52s
Examples (examples/salvo_example)	2m 52s
Examples (examples/poem_example)	2m 28s
MariaDB (10.6, actix, native-tls)	2m 40s
MySQL (8, actix, native-tls)	3m 52s
MySQL (5.7, actix, native-tls)	3m 53s
SQLite (async-std, native-tls)	3m 12s
SQLite (async-std, rustls)	3m 13s
Postgres (14.4, tokio, native-tls)	6m 59s
	1h 18m 2s

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