Support for cookie version 0.18

[blueowlgreenfish]

https://github.com/SergioBenitez/cookie-rs/blob/master/CHANGELOG.md

[wbcat]

I did it for axum main, which will become axum 0.7

It was just changing some lines in Cargo.toml

[dependencies]
axum-core = { git = "https://github.com/tokio-rs/axum.git", optional = true }
cookie = { version = "0.18", features = ["percent-encode"] }
http = "1"

[dev-dependencies]
hyper = "1.0.1"
once_cell = "1.18"

[imbolc]

@wbcat feel free to make a PR, though we should stick with the Axum release which is based on the old Hyper

[wbcat]

I will wait for axum 0.7 to be published and then will proceed with a PR if feasible.