refactor: Schema updates for tags and values

[oZakari]

Overview/Summary

Transitions schema for tags to support lists of values as well as to switch supported value of AI to AI-GPT-RAG.

Related Issues/Work Items

Related to ADO Item

Breaking Changes

None

As part of this pull request I have

• Read the Contribution Guide and ensured this PR is compliant with the guide
• Checked for duplicate Pull Requests
• Associated it with relevant GitHub Issues or ADO Work Items (Internal Only)
• Ensured my code/branch is up-to-date with the latest changes in the main branch
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[Copilot]

Copilot reviewed 5 out of 6 changed files in this pull request and generated 4 comments.

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• docs/archetypes/azure-resource-type/recommendations.yaml: Language not supported

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docs/content/contributing/create-content/create-recommendations/_index.md:80

• [nitpick] The example value for 'tags' should include all possible values like '[AI-GTP-RAG, AVD, AVS, HPC, SAP]' instead of just '[AVD]'.

| tags | [AVD]| String | [AI-GTP-RAG, AVD, AVS, HPC, SAP] | Indicates which type of specialized workload the recommendation is associated to.

[ehaslett]

LGTM

[ejhenry]

LGTM