Misleading description for "rust-client.updateOnStartup" setting

[Systemcluster]

The setting is defined as:

"rust-client.updateOnStartup": {
	"type": "boolean",
    "default": false,
    "description": "Update the RLS whenever the extension starts up."
},

This option results in rustup updating the toolchain, not only the RLS component. In case of a nightly toolchain, this potentially uninstalls the RLS.

The comment should indicate that the setting results in updates of the toolchain. I would suggest to use a wording similar to the description of the rls.update command:

{
    "command": "rls.update",
    "title": "Update the RLS",
    "description": "Use Rustup to update Rust, the RLS, and required data",
    "category": "Rust"
},