Feat #1562: Support dynamic type for values attribute enabling structured diff output

[dennismdejong]

The values attribute now uses types.Dynamic instead of types.List, allowing users to pass structured objects directly instead of only raw YAML strings in a list.

Changes

• Changed Values field from types.List to types.Dynamic in both HelmReleaseModel and HelmTemplateModel
• Updated schema from schema.ListAttribute to schema.DynamicAttribute
• Updated getValues() and getValuesModel() to handle both:
  • types.Object (new): structured map/object values are converted to map[string]interface{} and merged
  • types.List (backward compatible): existing YAML string list format continues to work
• Added dynamicObjectToMap() and attrValueToNative() helper functions for recursive conversion of Terraform types
• Updated state upgrader to reference tftypes.DynamicPseudoType
• Updated ImportState to use types.DynamicNull()

Backward Compatibility

Existing configurations using values = ["yaml: string"] continue to work unchanged. Users can now also use values = { key = "value" } for structured input.