Fix Helm chart version synchronization

[Emre Şafak (esafak)]

Why?

The OCI workflow could publish a chart whose metadata diverged from the repository. It also missed normal chart changes because it only watched Chart.yaml; the latest helm chart is over a year old.

This PR will...

• Trigger OCI chart publishing for all changes under charts/** and for Version.props changes.
• Keep the Git chart version and appVersion aligned with the Garnet release version.
• Fail before packaging if either chart value differs from Version.props.

Testing

• git diff --check
• actionlint .github/workflows/helm-chart.yml (only the pre-existing SC2044 warning for the find-based packaging loop remains)
• Reviewer verification confirmed the chart metadata is Helm-valid and the version check passes for 2.1.5.

[Emre Şafak (esafak)]

@microsoft-github-policy-service agree company="Archipelago AI"

[Emre Şafak (esafak)]

@microsoft-github-policy-service agree company="Archipelago AI"

[Copilot]

Pull request overview

Synchronizes Helm chart metadata with Garnet’s canonical release version and broadens OCI publishing triggers.

Changes:

• Aligns chart version and appVersion with Version.props.
• Validates version consistency before packaging.
• Triggers publishing for all chart and version changes.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
charts/garnet/Chart.yaml	Updates chart metadata to version 2.1.5.
.github/workflows/helm-chart.yml	Expands triggers and adds version validation.

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[Emre Şafak (esafak)]

Addressed in commits 5e67d73 and c4cc01a. The checked-in README now shows Version 2.1.5 and AppVersion 2.1.5, and the README template retains chart.badgesSection so future helm-docs regeneration uses the chart metadata.