Add s3_tags input for tagging S3 buckets

[damianrekosz]

Currently, the module supports lambda_tags for tagging Lambda functions. It would be useful to have a similar s3_tags input for S3 buckets created by the module. This would allow organizations to track the costs of S3 resources created by the module.

Right now when tags are automatically added by an automation, the module shows constant drift - each terraform apply removes the added tags. This creates a loop where the automation adds tags, and every terraform apply removes them. Supporting s3_tags would allow users to manage tags through Terraform without interfering with organizational tagging policies.

[npalm]

I use myself terragrunt / was provider for organizational tagging. But feel free to draft a PR to add the tag option. Please ensure you updat the root and multi runner module

[damianrekosz]

I have drafted a PR -> #4832.