Upgrade to cue v0.15.1

Improve printing of errors

Fix regression on helm hooks

Handle missing newlines after yamldoc similar to helm template

Add back the ghcr login step

Looks like we do need it with goreleaser

Add CreateNamespace option on helmCharts

Set CUE_CACHE_DIR on argo plugin

This is needed for cue modules to work as nonroot

Reduce verbosity of go tests in CI

Upgrade all dependencies including cue to v0.14.1