Expand rust tests

[ByteOtter]

What?

This PR aims to expand the test coverage for the rust language packages. It aims to build upon the already existing test for the cargo package found in tests/console/rust.pm and include rustup into the coverage as well.

-- This is experimental and WIP --

Todo

• [x] Separation of cargo and rustup tests

rustup - Tests

• [x] Installation of rustup
  
  
• [x] Test installing a new rust toolchain with rustup
• [x] Test switching default toolchain with rustup

cargo - Tests

• [x] Test installation of cargo
• [x] Test project creation with cargo
• [x] Test dependency management with cargo
• [x] Test project compilation with cargo
• [x] Add docs creation with cargo

Links

• Related ticket: N/A
• Needles: N/A
• Verification run: TBD

[foursixnine]

triggered: https://openqa.suse.de/tests/14413412

for JOB in $JOBS; do GITHUB_TOKEN=$(gh auth token) openqa-clone-custom-git-refspec https://github.com/os-autoinst/os-autoinst-distri-opensuse/pull/19080 $JOB SCHEDULE=tests/installation/bootloader_start,tests/boot/boot_to_desktop,tests/console/consoletest_setup,tests/console/rust_cargo,tests/console/rust_rustup TEST=RUST_33881; done;

[foursixnine]

Here's the openSUSE build: https://openqa.opensuse.org/tests/4213796#step/rust_rustup/13