fix(rust): remove rls and rust-analysis for Rust 1.87+ compatibility

[liskin]

Rust 1.87.0 and later have removed the long-deprecated RLS and rust-analysis components. This change updates the install script to only add rust-src, rustfmt, and clippy, preventing build errors during feature installation. See: rust-lang/rust#126856 https://blog.rust-lang.org/2022/07/01/RLS-deprecation/ https://github.com/rust-lang/rustup/blob/a92432fc8b6d5d4e56ebd08ca1c45b7b1294c1bd/doc/user-guide/src/concepts/components.md#previous-components

Fixes: #1361

[NeoScript]

Hey! I just added a couple more changes: https://github.com/liskin/features/pull/1
This will help replace rls with rust-analyzer and prevent versions older than 1.64 to prevent issues where rust-analyzer is not available.

Not 100% familiar with fork etiquette so I kinda just added it on to your fork. Thanks!

[NeoScript]

Also, as a quick workaround for anyone facing a similar problem. Just pin rust to 1.86 for now inside your .devcontainer/devcontainer.json file under features:

"ghcr.io/devcontainers/features/rust:1": {
	"version": "1.86",
	"profile": "default"
}

Tip

Read more about rustup profiles here

[Mathiyarasy]

Thank you @liskin and @NeoScript for your contributions.
Please increment the version in rust feature.
If you merge the PR of Further fixes for rls deprecation #1
I think this PR gets ready to be merged ..

[liskin]

@microsoft-github-policy-service agree

(although I wonder if it's really me who needs to agree, as this CLA nonsense started only after I've pulled @NeoScript's commits into my branch…)

[NeoScript]

@microsoft-github-policy-service agree

Hello! Sorry I've not seen any notifications around the service agree but just in case.

[eljog]

Approving workflow run

[eljog]

Thanks for the contribution 🎉