Fixes an issue where Chart.yaml dependencies with relative file:// paths
fail during chartification because the paths become invalid when the chart
is copied to chartify's temporary directory.
The rewriteChartDependencies function now converts relative file://
dependencies to absolute paths before chartification, then restores the
original Chart.yaml afterwards. Absolute file:// and other repository
types (https, oci) are left unchanged.
Includes comprehensive test coverage for various dependency scenarios.
Signed-off-by: Shane Starcher <shane.starcher@gmail.com>
Co-authored-by: Shane Starcher <shane.starcher@gmail.com>