Feat #1745: Support semver version ranges in helm_release version attribute

[dennismdejong]

Description

This PR implements support for semver version ranges in the version attribute of helm_release resource and helm_template data source.

Changes

1. Updated schema descriptions - Updated the version attribute description in both the resource and data source to document that semver range syntax is supported (e.g., ^1.2.3, >= 1.0.0 < 2.0.0).

2. Standard chart repositories - Version ranges already work natively with Helm's ChartPathOptions.Version for non-OCI charts. No changes needed here beyond documentation.

3. OCI chart version resolution - Added resolveOCIVersionConstraint() function that resolves semver constraints for OCI charts by:

   • Checking if the version string is already an exact semver version (pass through)
   • Parsing the version as a semver constraint
   • Listing available tags from the OCI registry via registry.Client.Tags()
   • Finding the best matching version that satisfies the constraint
   • Setting the resolved exact version on ChartPathOptions.Version

The OCI resolution is applied in both chartPathOptions (resource) and chartPathOptionsModel (data source) when the repository is an OCI registry and the version is a non-empty constraint string.

Fixes #1745