All Rust dependencies production-ready

[lastmjs]

• ic-wasi-polyfill we will hope becomes stable soon, I have opened an issue, and I am also in communication with the author: ic-wasi-polyfill needs to be considered production-ready #2789
• rquickjs: We might want to add wasm32-wasi tests for rquickjs: wasm32-wasip1/wasm32-wasip2 tests DelSkayn/rquickjs#441 and Write rquickjs wasi tests #2155
• Try to remove ic-cdk-macros and just use ic_cdk::query etc
• Get rid of the = on the slotmap version, I don't remember why that was there
• Try to remove candid because we have candid_parser, probably won't work