feat(application): Add support for Kustomize Patches

[stevendborrelli]

Description of your changes

• Adds support for Kustomize Patches
• updates upstream ArgoCD to v2.12.6

Fixes #208

I have:

• Read and followed Crossplane's [contribution process].
• Run make reviewable test to ensure this PR is ready for review. It looks like linting is broken in the Makefile.

How has this code been tested

We've tested this successfully internally, also confirmed by comment #208 (comment).

[stevendborrelli]

I'm a little unsure of the goverter conversions, there are a few fields missing that I have commented out.

[blakepettersson]

@stevendborrelli which fields are you uncertain about? https://github.com/argoproj/argo-cd/blob/d408909df6f950dd4b1a0b898c3b77259aef394f/pkg/apis/application/v1alpha1/types.go#L521

[stevendborrelli]

@blakepettersson There are new fields I was pulling from main that aren't in the last release. I've removed them in commit: 966a5ae.

[stevendborrelli]

@janwillies @MisterMX could we get a review of this?

[janwillies]

Thanks for the PR @stevendborrelli! Changes look good to me, figuring out why the linter fails

[MisterMX]

Looks good to me so far. I don't see any major issues - I haven't tested it by myself, though.

[MisterMX]

Looks already good to me. @stevendborrelli can you fix the one last thing and squash your changes into a single commit using the PR's title?

[stevendborrelli]

@MisterMX I've squashed the commits

[MisterMX]

LGTM. Thank you very much @stevendborrelli!

[MisterMX]

@stevendborrelli can you fix the linter issues?

[stevendborrelli]

@MisterMX Yes, I will take a look.