fix: use non-deprecated S3 bucket names

[xnoto]

Summary

• replace deprecated aws_s3_bucket.id references with aws_s3_bucket.bucket for bucket-name arguments
• covers public access blocks, bucket policies, and website configuration resources

Validation

• tofu fmt -recursive
• tofu init -backend=false -reconfigure -upgrade -input=false -no-color
• tofu validate -no-color
• pre-commit run --all-files --config /home/user/git/makeitworkcloud/images/tfroot-runner/pre-commit-config.yaml

Notes

• This is intended to clear the AWS provider warning: "Value derived from a deprecated source" on aws-s3.tf line 71.
• No live tofu plan/apply was run locally; PR CI should produce the live plan.

[github-actions]

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