Release v8.0.0: Major ESM migration and Node.js 22 upgrade

🚀 Major Changes

This is a major release that introduces breaking changes to modernize the package and improve its stability.

💥 Breaking Changes

• ESM Migration: Package now uses ES modules instead of CommonJS
• Node.js 22+: Minimum Node.js version requirement increased from 16 to 22
• Build System: Switched from Babel to TypeScript compiler for cleaner builds
• Package Manager: Updated toolchain to use pnpm instead of yarn

✨ New Features

• Improved LibreOffice conversion error detection and handling
• Enhanced stderr error propagation for better debugging
• Comprehensive test setup with updated testing infrastructure

🔧 Improvements

• Updated to ESLint v9 with modern configuration
• Upgraded all dependencies to latest versions
• Cleaner package structure with proper ESM exports
• Removed legacy Babel configuration and CircleCI hooks
• Updated TypeScript to 5.9.2 and Jest to 30.0.5

📦 Dependencies

• Updated @shelf/is-audio-filepath from 2.0.0 to 3.0.1
• Updated del from 5.1.0 to 8.0.0
• Updated is-image from 3.1.0 to 4.0.0
• Updated is-video from 1.0.1 to 2.0.0

⚠️ Migration Guide

If you're upgrading from v7.x:

1. Ensure you're using Node.js 22 or higher
2. Update your imports to use ES module syntax:

   // Before
   const { convertTo } = require('@shelf/aws-lambda-libreoffice');
   
   // After
   import { convertTo } from '@shelf/aws-lambda-libreoffice';

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Full Changelog: v7.2.0...v8.0.0