Update AWS provider version requirement 3.0 -> 4.9.0
Update Terraform requirement 0.13.0 -> 1.0.0
why
PR #140 made a change that requires AWS provider v4.0, and versions of 4.x prior to 4.9.0 have major incompatibilities with managing S3 and Security Group resources.
Cloud Posse policy of dropping support for pre-release Terraform versions.
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why
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