docs: update resource counts

[terraform-aws-provider]

This PR updates the resource/data source counts included on the provider documentation index page.

[github-actions]

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[github-actions]

This functionality has been released in v5.59.0 of the Terraform AWS Provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template. Thank you!

[github-actions]

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