Fix helm chart release version and name of the workflow for umbrella charts

[DinithHerath]

This pull request updates the Helm chart release workflows and chart metadata for both the AI Workspace and Developer Portal. The changes mainly focus on standardizing chart names and resetting the version numbers to the initial alpha release.

Helm Chart Metadata Updates:

• kubernetes/helm/ai-workspace-helm-chart/Chart.yaml: Reset version and appVersion from 1.0.0-alpha2 to 1.0.0-alpha to reflect the initial alpha release.
• kubernetes/helm/developer-portal-helm-chart/Chart.yaml: Reset version and appVersion from 1.0.0-alpha2 to 1.0.0-alpha.

Workflow Naming Standardization:

• .github/workflows/ai-workspace-helm-release.yml: Renamed workflow from "Release AI Workspace Umbrella Helm Chart" to "Release AI Workspace Helm Chart" for consistency.
• .github/workflows/developer-portal-helm-release.yml: Renamed workflow from "Release Developer Portal Umbrella Helm Chart" to "Release Developer Portal Helm Chart".

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

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📥 Commits

Reviewing files that changed from the base of the PR and between 471f00e and 77f34d4.

📒 Files selected for processing (4)

• .github/workflows/ai-workspace-helm-release.yml
• .github/workflows/developer-portal-helm-release.yml
• kubernetes/helm/ai-workspace-helm-chart/Chart.yaml
• kubernetes/helm/developer-portal-helm-chart/Chart.yaml

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📝 Walkthrough

Walkthrough

Helm chart metadata for AI Workspace and Developer Portal was changed from 1.0.0-alpha2 to 1.0.0-alpha. Their GitHub Actions workflow display names were updated to remove “Umbrella”.

Changes

Helm release metadata

Layer / File(s)	Summary
Chart versions and workflow names .github/workflows/*-helm-release.yml, kubernetes/helm/*-helm-chart/Chart.yaml	Both charts now use 1.0.0-alpha for version and appVersion; workflow display names omit “Umbrella”.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Possibly related PRs

• wso2/api-platform#2898: Introduced or owned the affected umbrella Helm chart metadata.

Suggested reviewers: pubudu538, malinthaprasan, lasanthas, tgtshanika, chamilaadhi

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The description covers the change summary but omits most required template sections like Purpose, Goals, Approach, tests, and security checks.	Add the missing template sections or mark non-applicable items as N/A, especially Purpose, Goals, Approach, tests, security, and environment.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title matches the main change set by mentioning Helm chart version resets and workflow renames for the umbrella charts.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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