fix(aws_dynamodb_table): Specify "name" for GlobalSecondaryIndex in flattenTableGlobalSecondaryIndex

[Shion1305]

Description

Resolves #41110. When applying an aws_dynamodb_table with a Global Secondary Index (GSI) against the DynamoDB local emulator, Terraform consistently shows diffs for the GSI, even though no actual changes are made.

Investigation revealed that if ProvisionedThroughput is not configured, the name property for the GSI remains empty. This PR ensures that the name property is always set, preventing unnecessary diffs.

Relations

Closes #41110 (aws_dynamodb_table GSI shows unexpected diffs when using DynamoDB local emulator)

Output from Acceptance Testing

I was not able to setup environment for this test... 🙏

% make testacc TESTS=TestAccXXX PKG=ec2

...

[github-actions]

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[github-actions]

Welcome @Shion1305 👋

It looks like this is your first Pull Request submission to the Terraform AWS Provider! If you haven’t already done so please make sure you have checked out our CONTRIBUTOR guide and FAQ to make sure your contribution is adhering to best practice and has all the necessary elements in place for a successful approval.

Also take a look at our FAQ which details how we prioritize Pull Requests for inclusion.

Thanks again, and welcome to the community! 😃

[Shion1305]

Can this be included in the next release? I want to use the fixed version in my project asap 🙏🙏

[Shion1305]

@justinretzolk Could you review this when you have a chance? 🙏 🙏