refactor: move package state to local variable

[phillebaba]

Description

This removes the Zarf state as a property in the packager struct. Instead it is loaded in functions that needs it and passed as a argument.

Related Issue

Relates to #2709

Checklist before merging

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

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 69 lines in your changes missing coverage. Please review.

Files	Patch %	Lines
src/internal/packager/template/template.go	0.00%	31 Missing ⚠️
src/pkg/packager/deploy.go	0.00%	25 Missing ⚠️
src/pkg/packager/mirror.go	0.00%	10 Missing ⚠️
src/internal/packager/helm/zarf.go	0.00%	1 Missing ⚠️
src/pkg/packager/prepare.go	0.00%	1 Missing ⚠️
src/pkg/packager/remove.go	0.00%	1 Missing ⚠️

Files	Coverage Δ
src/pkg/packager/common.go	52.52% <ø> (ø)
src/internal/packager/helm/zarf.go	0.00% <0.00%> (ø)
src/pkg/packager/prepare.go	0.00% <0.00%> (ø)
src/pkg/packager/remove.go	0.00% <0.00%> (ø)
src/pkg/packager/mirror.go	0.00% <0.00%> (ø)
src/pkg/packager/deploy.go	4.29% <0.00%> (+0.01%)	⬆️
src/internal/packager/template/template.go	8.06% <0.00%> (+0.48%)	⬆️