Auth agnostic kube client

[g-gaston]

Part of #1106 and #1109

Description of changes

Wrapping around the the kubectl interface to make the client API
agnostic from the authentication mechanism. Also adding support for an
internal schema that avoids having to indicate the resource type because
it's inferred from the concrete CRD type.

This allows to provide a common interface that can be implemented by
both a kubectl binary wrapper and a controller runtime client. With
this, we will be be able to build logic that interacts with the api
server and that can be shared between the CLI and the controller.

Testing

Added unit tests

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[eks-distro-bot]

Skipping CI for Draft Pull Request.
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[codecov]

Codecov Report

Merging #1941 (bc31a18) into main (b3e58c4) will increase coverage by 0.06%.
The diff coverage is 82.75%.

❗ Current head bc31a18 differs from pull request most recent head 8f73688. Consider uploading reports for the commit 8f73688 to get more accurate results

@@            Coverage Diff             @@
##             main    #1941      +/-   ##
==========================================
+ Coverage   50.01%   50.07%   +0.06%     
==========================================
  Files         290      293       +3     
  Lines       24680    24731      +51     
==========================================
+ Hits        12343    12385      +42     
- Misses      11040    11046       +6     
- Partials     1297     1300       +3     

Impacted Files	Coverage Δ
pkg/clients/kubernetes/scheme.go	50.00% <50.00%> (ø)
pkg/dependencies/factory.go	50.67% <53.84%> (+0.07%)	⬆️
pkg/executables/kubectl.go	35.54% <92.85%> (+0.44%)	⬆️
pkg/clients/kubernetes/kubeconfig.go	100.00% <100.00%> (ø)
pkg/clients/kubernetes/unauth.go	100.00% <100.00%> (ø)

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[jiayiwang7]

/lgtm

[jiayiwang7]

/lgtm

[g-gaston]

/approve

[eks-distro-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: g-gaston

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