Add Debian package (.deb) support to Python binary builds

[Copilot]

This PR implements support for creating Debian packages (.deb files) alongside the existing tar.gz and zip binary archives, addressing the request to "pack python3 binary in also deb file".

Changes Made

Workflow Enhancements

• Added deb packaging dependencies: Both build.yml and build-glibc236.yml workflows now install dpkg-deb and fakeroot tools required for creating Debian packages
• Implemented deb package creation: New workflow steps create proper Debian package structure with DEBIAN control files containing package metadata, dependencies, and descriptions
• Updated release artifacts: GitHub releases now include .deb files alongside existing formats, with SHA256 checksums for all package types

Package Details

• Regular build: Creates packages named python<major.minor>-custom (e.g., python3.11-custom) installed to /opt/python-<version>/
• glibc236 build: Creates packages named python<major.minor>-custom-glibc236 installed to /opt/python-<version>-glibc236/
• Proper dependencies: Control files include appropriate system dependencies (libc6, libssl, zlib1g, etc.) for Debian/Ubuntu compatibility
• Professional packaging: Follows Debian package standards with proper metadata and descriptions

Documentation Updates

• Enhanced README: Added comprehensive installation instructions for deb packages
• Multiple installation methods: Clear guidance for both deb package installation and manual extraction
• Uninstallation instructions: Added section explaining how to remove installed deb packages

Usage Examples

Installing a deb package:

sudo dpkg -i python-3.11.7-linux-x86_64.deb
/opt/python-3.11.7/bin/python3 --version

Uninstalling:

sudo dpkg -r python3.11-custom

Benefits

• Easy installation on Debian/Ubuntu systems with proper dependency management
• Clean uninstallation through APT package management
• Backward compatibility - existing tar.gz/zip workflows remain unchanged
• Professional packaging following Debian standards

The implementation maintains minimal changes to existing workflows while adding comprehensive deb package support that integrates seamlessly with the current build process.

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[anubhavkrishna1]

Seems good

[Copilot]

Pull Request Overview

This PR adds Debian package (.deb) support to the existing Python binary build system, allowing users to install Python binaries as proper Debian packages alongside the existing tar.gz and zip archives.

• Added .deb package creation to both standard and glibc236 build workflows
• Updated README with comprehensive installation and uninstallation instructions for deb packages
• Enhanced release artifacts to include .deb files with SHA256 checksums

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 4 comments.

File	Description
README.md	Added deb package installation instructions and uninstallation section
.github/workflows/build.yml	Added deb packaging tools and deb package creation step
.github/workflows/build-glibc236.yml	Added deb packaging tools and deb package creation step for glibc236 builds

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[Copilot]

This long dependency line is difficult to read and maintain. Consider breaking it into multiple echo statements or using a multi-line approach for better readability.

[anubhavkrishna1]

Fix this