test: add bats e2e tests

avirtopeanu-ionos commented 7 months ago

Adds bats-core end to end tests.

Add libs for simpler asserts
Adds a complex test for compute resources of CloudAPI and a test for K8s Nodepools
Adds tagging system, for running only relevant tests
- Adjust the CI for this tagging system, manually checkout master
- If failed getting BASE_BRANCH (i.e. like running locally) - then simply choose master as the base
Retry command for flaky deletions. Ideally our -w flag would be a wait-for-delete on deletion commands, but it's a good compromise for now.