refactor [NET-1654]: Clean-up tsconfigs for the utils package

[mondoreale]

This pull request updates TypeScript configuration files across multiple packages to improve project references and build consistency. The main change is standardizing how the utils package is referenced in various tsconfig files, switching from referencing its config file directly to referencing the package directory. Additionally, the utils package receives several updates to its own config files and scripts to streamline builds and checks.

Changes

Project reference updates:

• Updated all references to the utils package in tsconfig.jest.json and tsconfig.node.json files across packages (such as autocertifier-client, autocertifier-server, cdn-location, dht, geoip-location, node, proto-rpc, test-utils, and cli-tools) to use { "path": "../utils" } instead of { "path": "../utils/tsconfig.node.json" } for better compatibility with TypeScript project references.

utils package configuration improvements:

• Added a root tsconfig.json to the utils package, enabling composite builds and referencing all relevant config files (tsconfig.jest.json, tsconfig.node.json, tsconfig.karma.json).
• Updated tsconfig.jest.json in utils to only include the test directory and added a reference to its own tsconfig.node.json for improved separation of test and source code.

Build and check script enhancements:

• Modified the build script in utils/package.json to use tsc -b for composite builds, and updated the check script to run both Jest and Node TypeScript checks for stricter type safety.

Cleanup:

• Removed the unused tsconfig.browser.json file from the utils package, reducing clutter.

[linear]

NET-1654 Clean-up `utils` package tsconfigs

[mondoreale]

Closing in favour or #3301.