Add support for SPKS and implement sts resizing

[TheBigLee]

Summary

• This PR adds support for the SPKS MariaDB and Redis offerings
• It also implements the sts deletion logic for PVC resizing using composition functions

Checklist

• Categorize the PR by setting a good title and adding one of the labels:
  bug, enhancement, documentation, change, breaking, dependency
  as they show up in the changelog
• Update tests.
• Link this PR to related issues.

[zugao]

Did we reuse the scripts or they have been just implemented in this PR? I feel like this PR is full of bombs, have you tested it throughly?

[TheBigLee]

Did we reuse the scripts or they have been just implemented in this PR? I feel like this PR is full of bombs, have you tested it throughly?

We did reuse them from the vshnredis, but have been adjusted slightly to work with this setup.
It has been tested thoroughly. What bombs are you refering to?

[Kidswiss]

I like the approach.

I've added a few comments about it.

Also, it would be great if this was generic for any release, because right now the code exists more or less identical for two spks services and still with the race condtion for the other services.

[wejdross]

I'd add PrometheusRule as well to check if annotation crossplane.io/paused is set for longer than 15 minutes, so we don't end up with partially broken resources and catch early issues.

[TheBigLee]

I'd add PrometheusRule as well to check if annotation crossplane.io/paused is set for longer than 15 minutes, so we don't end up with partially broken resources and catch early issues.

This is obsolete, as we use trap to ensure the value is removed

[wejdross]

I'm ok with that, just one nitpick. LGTM