chore: update dependencies and improve test handling

- Added @babel/runtime dependency to package.json.
- Updated copy-webpack-plugin to version 14.0.0.
- Updated webpack-dev-server to version 5.2.4.
- Changed Node.js engine requirement from 20.x to 22.x.
- Refactored tests in game.ts to use async/await for module imports.
- Removed unnecessary TypeScript error suppressions for 'pixi' and 'p2'.
- Cleaned up tsconfig.json by removing deprecated ignoreDeprecations option.

Author: DreadKnight