Feature/python 3.12

[sliu008]

This pull request introduces a major update to the project's Python version and dependency management, along with significant improvements to the CI/CD GitHub Actions workflows. The changes modernize the build and deployment pipelines, update core dependencies, and refactor Docker and Terraform configurations for better maintainability and compatibility.

CI/CD Workflow and Deployment Pipeline Improvements:

• Upgraded GitHub Actions workflows to use Python 3.12 and Poetry 2.1.3, and updated related actions to their latest major versions. This affects both the release and build workflows (.github/workflows/.release-created.yml, .github/workflows/build.yml). [1] [2] [3]
• Refactored the build and deployment process by splitting deployment into a separate deploy job, using workflow outputs for passing build metadata, and streamlining artifact handling and environment variable management.
• Removed QEMU, Docker Buildx, and some Terraform setup steps from the build job, moving Terraform deployment and Docker registry login to the new deploy job. [1] [2]
• Improved deployment triggers to allow manual deployments via commit messages (/deploy sit, /deploy uat).

Dependency and Dockerfile Updates:

• Updated base Python images in all Dockerfiles to python:3.12-slim and public.ecr.aws/lambda/python:3.12-arm64, and refactored the Lambda Dockerfile for efficiency and compatibility. [1] [2] [3]
• Updated core Python dependencies in pyproject.toml to require Python 3.12 and the latest compatible versions of numpy, pytest, pytest-cov, pylint, and Sphinx. [1] [2]

Terraform Configuration Updates:

• Updated required provider versions for null in both terraform/main.tf and terraform_deploy/main.tf for broader compatibility with newer Terraform versions. [1] [2]

Other Notable Changes:

• Added an initial delay to the PyPI package polling script to reduce transient download failures.
• Removed the deprecated suggestion-mode option from .pylintrc.

These changes collectively modernize the project's toolchain, improve CI/CD reliability, and prepare the codebase for future enhancements.