build(deps-dev): lock typescript minor version

[Fdawgs]

See https://github.com/fastify/fastify/pull/5748

Checklist

• [x] run npm run test and npm run benchmark
• [x] tests and/or benchmarks are included
• [x] documentation is changed or added
• [x] commit message and code follows the Developer's Certification of Origin and the Code of conduct

[netlify[bot]]

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[galvez]

Thanks!