ci: add GH workflow to install crossplane in kind

[displague]

Adds an initial GH Workflow

CI Testing steps intended:

• install kind
• install crossplane from helm
• equinix-metal provider
  • lint
  • test
  • build
• create equinix-metal project
• use crossplane cli to install equinix-metal provider
• create providerconfig resource (and secret)
• check for ready provider
• create device, vlan, etc
• check for created resources
• delete resources
• check for deleted resources
• delete equinix-metal project

Part of #6

Description of your changes

Checklist

I have:

• [ ] Run make reviewable to ensure this PR is ready for review.
• [ ] Ensured this PR contains a neat, self documenting set of commits.
• [ ] Updated any relevant documentation, examples, or release notes.

[hasheddan]

@displague I think failure here is because it is trying to build an arm image on x86 host.. this works in Jenkins because we build in cross container. Do you know if GH action would let you use that here?

[hasheddan]

@displague if you want to merge this I can make the adjustments in my PR to get it running :)