Bump serialize-to-js from 3.0.0 to 3.1.1 in /examples/using-typescript (

#268)

Bumps [serialize-to-js](https://github.com/commenthol/serialize-to-js) from 3.0.0 to 3.1.1.
- [Release notes](https://github.com/commenthol/serialize-to-js/releases)
- [Commits](commenthol/serialize-to-js@v3.0.0...v3.1.1)

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