docker: Support arm64 manylinux image and wheel creation.

[MisterGC]

Add ARM64 support for manylinux wheel building and support for ARM64 Linux in cmake cfg.

Summary

• Enable building manylinux wheels for ARM64 architecture
• Update Docker configuration to support multi-architecture builds
• Improve Python version handling in Docker images

Changes

• ARM64 Support: Modified Dockerfile.template and deploy.bash to handle ARM64 architecture alongside x86_64
• CMake Improvements: Updated CMake files to properly detect ARM64 platform and use Development.Module component instead of full Development - this leverages the Python development files already provided by manylinux images, avoiding the need to manually download and build Python from source
• Python Version Management: Enhanced Docker configuration to use two-digit Python versions (e.g., 3.9, 3.10) instead of pinning to specific patch versions, allowing manylinux images to automatically use the latest patch releases with critical security and bug fixes
• Documentation: Updated README with ARM64 architecture information

Technical Details

• Uses platform-specific base images for manylinux builds
• Properly detects aarch64 architecture in CMake for wheel tagging
• Ensures Python versions are correctly activated in Docker containers
• Follows manylinux best practices by using flexible Python version specifications

[josephbirkner]

Awesome!