feat: flux OCI support in Zarf Agent

[cmwylie19]

Description

This features add support for Zarf to delivery Flux's OCIRepo, and HelmRepo that references an OCI URL.

Related Issue

Fixes #1974

Type of change

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Other (security config, docs update, etc)

Checklist before merging

• [x] Test, docs, adr added or updated as needed
• [x] Contributor Guide Steps followed

[netlify[bot]]

✅ Deploy Preview for zarf-docs canceled.

Name	Link
🔨 Latest commit	2b08e4ac959fed92c20a441fe01e2628d20c098c
🔍 Latest deploy log	https://app.netlify.com/sites/zarf-docs/deploys/667eb1debec2a70008f3de3b

[gadido30]

can it also have support for ArgoCD?

[cmwylie19]

can it also have support for ArgoCD?

There is already support for Argo https://github.com/defenseunicorns/zarf/tree/main/examples/argocd

[AustinAbro321]

This is still blocked on the flux side as trying to connect to the internal registry for login is still going over https when repo.spec.insecure is set to true.

We have created a PR on the flux side and are awaiting a response from them https://github.com/fluxcd/source-controller/pull/1412

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 67.50000% with 52 lines in your changes missing coverage. Please review.

Project coverage is 18.96%. Comparing base (7b8cc2d) to head (2b08e4a).

Files	Patch %	Lines
src/pkg/cluster/secrets.go	36.00%	15 Missing and 1 partial :warning:
src/internal/agent/hooks/flux-helmrepo.go	79.59%	5 Missing and 5 partials :warning:
src/internal/agent/hooks/flux-ocirepo.go	84.37%	5 Missing and 5 partials :warning:
src/internal/agent/http/server.go	0.00%	9 Missing :warning:
src/pkg/cluster/tunnel.go	55.55%	4 Missing :warning:
src/internal/packager/helm/post-render.go	0.00%	3 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2005      +/-   ##
==========================================
+ Coverage   18.34%   18.96%   +0.61%     
==========================================
  Files         168      170       +2     
  Lines       12065    12204     +139     
==========================================
+ Hits         2213     2314     +101     
- Misses       9595     9622      +27     
- Partials      257      268      +11     

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