Added option to use VpaMinReplicasAnnotation from labels

[devantler]

This PR adds the option of using goldilocks.fairwinds.com/vpa-min-replicas: X as a label.

Checklist

• I have signed the CLA
• I have updated/added any relevant documentation

Description

Currently it is not possible to set vpa-min-relplicas with labels, like it is with some of the other options. This fix should ensure that is also the case for vpa-min-replicas

What's the goal of this PR?

To support labels for vpa-min-replicas

What changes did you make?

I added an if/else statement in the code where this was needed. The solution was inspired by how this is implemented other places in the code. Feel free to change it to your liking!

What alternative solution should we consider, if any?

blank

[CLAassistant]

All committers have signed the CLA.

[sudermanjr]

I don't love only doing this for the minReplicas and not the other VPA settings. Can you make sure that all settings are updated?

[devantler]

Sure, i'll have a look at it as soon as possible ☀️🕶️

[devantler]

@sudermanjr I made a search for all cases that uses the accessor.GetAnnotations() method, and only found one more that was missing an else condition for retrieving the key/value from labels. The rest had both annotations and labels supported, where annotations is prioritized if both are set.

I believe that should be all, so I have rerequested a review ✌🏻

[sudermanjr]

Looks good. Now I need to figure out why the CI won't run