Merge branch 'kayma/use-imdsv2-spot' into 'main'

chore: use IMDSv2 for spot instances

Closes #62

See merge request https://gitlab.com/gitlab-org/ci-cd/docker-machine/-/merge_requests/100



Merged-by: Tomasz Maczukin <tomasz@maczukin.pl>
Approved-by: Alex Hanselka <alex@gitlab.com>
Approved-by: Tomasz Maczukin <tomasz@maczukin.pl>
Reviewed-by: Marco Zille <marco.zille@gmail.com>
Co-authored-by: Michael Hofmann <mhofmann@redhat.com>