fix: add @sinclair/typebox to devDependencies

[techvlad]

When I'm trying to initialise project by using pnpm typebox dependency is missing due to strictness in pnpm.

This PR adds @sinclair/typebox to devDependencies

Before submitting a Pull Request, please test your code.

If you created a new feature, then create the unit test function, too.

# COMPILE
npm run build

# RE-WRITE TEST PROGRAMS IF REQUIRED
npm run test:template

# BUILD TEST PROGRAM
npm run build:test

# DO TEST
npm run test

Learn more about the CONTRIBUTING

[samchon]

I have a question that, why are you installing this repository through pnpm?

It is okay to installing typia on your project through pnpm, but this repository is designed to using the pure npm.

[techvlad]

I have a question that, why are you installing this repository through pnpm?

I prefer to use pnpm for all projects that I'm trying contribute. In typia repository I didn't found any lock file - so I decided to try pnpm

[samchon]

Oops, I've missed package-lock.json file.