v22.0.0

What's Changed

• Bumped minimum Node.js version to >= 22
• Updated @gibme/cache to ^22.0.0
• Migrated test framework from mocha/ts-node to node:test/tsx
• Migrated npm publishing to OIDC Trusted Publishing
• Updated GitHub Actions (checkout@v4, setup-node@v4)
• Dropped Node 20 from CI matrix, now testing on Node 22 and 24
• Cleaned up tsconfig.json (removed deprecated options, browser-specific libs)
• Improved README with full API documentation