feat: Versioning for airflow-operator

[adwk67]

Description

Warning

WIP: need to re-set to operator-rs version rather than PR branch.

Related to #382.
Tested with stackabletech/operator-rs#1121.

Tip

To test:

stackablectl op in airflow=0.0.0-pr725
./scripts/run-tests --skip-operator airflow --test versioning

Tests 🟢 https://testing.stackable.tech/view/02%20Operator%20Tests%20(custom)/job/airflow-operator-it-custom/70/ (Openshift OKD 4.20)

Definition of Done Checklist

• Not all of these items are applicable to all PRs, the author should update this template to only leave the boxes in that are relevant
• Please make sure all these things are done and tick the boxes

Author

• Changes are OpenShift compatible
• CRD changes approved
• CRD documentation for all fields, following the style guide.
• Helm chart can be installed and deployed operator works
• Integration tests passed (for non trivial changes)
• Changes need to be "offline" compatible
• Links to generated (nightly) docs added
• Release note snippet added

Reviewer

• Code contains useful comments
• Code contains useful logging statements
• (Integration-)Test cases added
• Documentation added or updated. Follows the style guide.
• Changelog updated
• Cargo.toml only contains references to git tags (not specific commits or branches)

Acceptance

• Feature Tracker has been updated
• Proper release label has been added
• Links to generated (nightly) docs added
• Release note snippet added
• Add type/deprecation label & add to the deprecation schedule
• Add type/experimental label & add to the experimental features tracker

[Techassi]

note: We put the generated CRD in the top-level extra directory: extra/crds.yaml because Helm is no longer responsible for rolling out the CRD, the operator is.

[adwk67]

With this change does make regenerate-charts still work as before?

[adwk67]

I can change Makefile, but this will be overwritten by the next templating update. But neither does it make sense to do this globally until all product operators are versioned. I think this is best done as a chore once we reach that stage.

[Techassi]

Yes, this needs to be changed in the Makefile. We did the same thing for the secret-operator, see https://github.com/stackabletech/secret-operator/blob/0dd01ec27c9e53c20af526dbecf7bf034edddbf0/Makefile#L121-L123.

Additionally, the Tiltfile needs to be adjusted to not filter the manifests anymore.

These changes will eventually move into operator-templating, for now any rollouts need to be observed and manually adjusted that these changes are not overridden.

[adwk67]

See 3e9f0f8

[Techassi]

That looks good. Only thing left is to delete this file.