[Docs] Ubi cargo install instruction incorrect

[drewbitt]

mise/docs/dev-tools/backends/ubi.md

Line 13 in 4ac34da

mise use -g cargo:ubi

❯ mise use -g cargo:ubi
    Updating crates.io index
warning: no Cargo.lock file published in ubi v0.2.0
error: there is nothing to install in `ubi v0.2.0`, because it has no binaries
`cargo install` is only for installing programs, and can't be used with libraries.
To use a library crate, add it as a dependency to a Cargo project with `cargo add`.
mise cargo failed
    Updating crates.io index
warning: no Cargo.lock file published in ubi v0.2.0
error: there is nothing to install in `ubi v0.2.0`, because it has no binaries
`cargo install` is only for installing programs, and can't be used with libraries.
To use a library crate, add it as a dependency to a Cargo project with `cargo add`.
mise cargo exited with non-zero status: exit code 101
mise Run with --verbose or MISE_VERBOSE=1 for more information

That command is installing the library and not the CLI so will not work.

[jdx]

this is an issue with ubi, not mise:

❯ cargo binstall ubi
 INFO resolve: Resolving package: 'ubi'
ERROR Fatal error:
  × For crate ubi: no binaries specified nor inferred
  ╰─▶ no binaries specified nor inferred

[drewbitt]

I don't think there is any expectation to be able to install ubi via cargo in this way, so this is an issue in mise's documentation.