refactor: add context to renderer and remove dependency to types

[phillebaba]

Description

This change refactors the Helm packager to enable the continued refactoring of other packager code. I split this into a separate PR to keep reviewing simple.

Related Issue

Relates to #2682
Part of #2694

Checklist before merging

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

[netlify]

✅ Deploy Preview for zarf-docs canceled.

Name	Link
🔨 Latest commit	06c4f5f
🔍 Latest deploy log	https://app.netlify.com/sites/zarf-docs/deploys/66830692a1bde50008d527d9

[codecov]

Codecov Report

Attention: Patch coverage is 2.73973% with 71 lines in your changes missing coverage. Please review.

Project coverage is 19.03%. Comparing base (5a2ada1) to head (06c4f5f).

Files	Patch %	Lines
src/internal/packager/helm/post-render.go	0.00%	28 Missing ⚠️
src/pkg/packager/deploy.go	0.00%	12 Missing ⚠️
src/internal/packager/helm/common.go	0.00%	11 Missing ⚠️
src/internal/packager/helm/chart.go	0.00%	6 Missing ⚠️
src/pkg/packager/prepare.go	0.00%	3 Missing ⚠️
src/cmd/dev.go	0.00%	2 Missing ⚠️
src/extensions/bigbang/bigbang.go	0.00%	2 Missing ⚠️
src/internal/packager/helm/zarf.go	0.00%	2 Missing ⚠️
src/pkg/packager/generate.go	0.00%	2 Missing ⚠️
src/cmd/tools/zarf.go	0.00%	1 Missing ⚠️
... and 2 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2684      +/-   ##
==========================================
- Coverage   19.04%   19.03%   -0.02%     
==========================================
  Files         170      170              
  Lines       12194    12201       +7     
==========================================
  Hits         2322     2322              
- Misses       9586     9593       +7     
  Partials      286      286              

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