chore: Add deployer name in Createdby tag

[NirajC-Microsoft]

Purpose

This pull request introduces tagging enhancements to the infrastructure deployment process in infra/main.bicep. The main change is the addition of a resource to apply standardized and informative tags to the resource group, improving resource management and traceability.

Tagging improvements:

• Added a new resourceGroupTags resource that applies a set of tags to the resource group, including environment name (azd-env-name), template name (TemplateName), and the user who created the deployment (CreatedBy, derived from the deployer's principal name).
• Consolidated custom and inherited tags using the union function for comprehensive tagging.
• ...

Does this introduce a breaking change?

• Yes
• No

How to Test

• Get the code

git clone [repo-address]
cd [repo-name]
git checkout [branch-name]
npm install

• Test the code

What to Check

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• ...

Other Information

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[github-actions]

🎉 This PR is included in version 2.2.0 🎉

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