pkg/machine/wsl: wrap command errors

[Luap99]

First of some commands ignored cmd.Wait() error which means it was impossible to notice any command errors. And other just returned the wait error as it which is when a command fails just exit status <code> which is not helpful at all.

This commit should add proper error wrapping with stderr to get useful strings back hopefully.

Does this PR introduce a user-facing change?

None

[openshift-ci[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Luap99

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[Luap99]

  C> podman.exe machine rm --force m1-742391f9cdd7
  Error: exit status 124

Looks like I didn't catch the place where the test is failing, I have to keep looking...

[n1hility]

LGTM

[TomSweeneyRedHat]

LGTM

[baude]

given this passed, im going to merge. we can clean up error messages in subsequent submissions. thanks @Luap99

[baude]

/lgtm