Feature/cumulus consolidate update

[sliu008]

This pull request updates the project to use Python 3.12, consolidates dependencies and infrastructure for Cumulus, and makes several related upgrades to workflows and configuration. The changes ensure compatibility with the latest Python version and update related tooling and infrastructure definitions.

Python version and dependency updates:

• Updated all references to Python from 3.11 to 3.12 in pyproject.toml, GitHub Actions workflows (.github/workflows/build.yml, .github/workflows/.release-created.yml), and Terraform Lambda runtime (terraform/lambda.tf). [1] [2] [3] [4]
• Upgraded Poetry version and related GitHub Actions to match new Python version and improve dependency management. [1] [2]

Infrastructure and configuration changes:

• Updated Terraform provider definitions to use explicit sources for aws and null providers in terraform/main.tf.

Documentation:

• Updated CHANGELOG.md to reflect the Python 3.12 upgrade, library updates for Cumulus consolidation, and Terraform changes.

[Copilot]

Pull request overview

This pull request updates the repository to Python 3.12 across packaging (Poetry), CI workflows, and Terraform, alongside a small Terraform provider definition refactor and changelog updates.

Changes:

• Bump Python runtime/version references from 3.11 to 3.12 in pyproject.toml, GitHub Actions, and Terraform Lambda runtime.
• Refactor Terraform required_providers declarations (now using explicit provider sources).
• Update CI Poetry version pin and document the changes in CHANGELOG.md.

Reviewed changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
terraform/main.tf	Refactors Terraform provider requirements (but currently removes AWS provider configuration).
terraform/lambda.tf	Updates Lambda runtime to python3.12.
pyproject.toml	Updates Poetry Python constraint to ^3.12.
CHANGELOG.md	Adds Unreleased notes for the Python/Terraform updates.
.github/workflows/build.yml	Updates CI to Python 3.12 and newer action/Poetry versions.
.github/workflows/.release-created.yml	Updates release workflow to Python 3.12 and newer Poetry/action versions.

Comments suppressed due to low confidence (1)

terraform/main.tf:13

• The AWS provider configuration (region/profile and ignore_tags) was removed, which changes how Terraform determines the AWS region/credentials and can reintroduce tag-drift noise that ignore_tags previously suppressed. If this wasn't intentional, re-add the provider "aws" block here so the module continues to use var.region / var.aws_profile and preserves the existing tag-ignore behavior.

}

data "aws_caller_identity" "current" {}

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[jamesfwood]

It was already python 3.12, so this isn't needed