feat(servicecatalog): added property productType for servicecatalog

[ymhiroki]

Reason for this change

This feature allows customers to create Service Catalog products of different types, such as CloudFormation templates, Terraform configurations, or external products.

Description of changes

• Added a new productType property to the CloudFormationProductProps interface
• Updated the CloudFormationProduct class to support the productType property
• Added a new test case to verify the ProductType configuration

These changes enable customers to specify the product type when creating a Service Catalog product.

Describe any new or updated permissions being added

N/A

Description of how you validated changes

The changes have been validated through the addition of a new unit test case and the integration test that verifies the `ProductType configuration.

Checklist

• My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

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By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license

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• CodeBuild project: AutoBuildv2Project1C6BFA3F-wQm2hXv2jqQv
• Commit ID: fb29ecd
• Result: SUCCEEDED
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