chore(deps): update dependency tsc-watch to v4.2.8

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
tsc-watch	devDependencies	patch	4.2.5 -> 4.2.8

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Release Notes

gilamran/tsc-watch

### [`v4.2.8`](https://togithub.com/gilamran/tsc-watch/blob/master/CHANGELOG.md#v428---2352020) [Compare Source](https://togithub.com/gilamran/tsc-watch/compare/e91e81a1cfaaa385dc3e9305ae7c3efefef0f6d9...12155da9d194e922c68e76a66e3ea79f292c5db5) #### v4.2.8 - 23/5/2020 Fix: spawn compiler using node, this fixes issues with yarn v2 (pnp) - (Thanks to [@​merceyz](https://togithub.com/merceyz)) ### [`v4.2.7`](https://togithub.com/gilamran/tsc-watch/compare/10554b2e9d926919252bf7c5e7c92c8281b21ca2...e91e81a1cfaaa385dc3e9305ae7c3efefef0f6d9) [Compare Source](https://togithub.com/gilamran/tsc-watch/compare/10554b2e9d926919252bf7c5e7c92c8281b21ca2...e91e81a1cfaaa385dc3e9305ae7c3efefef0f6d9) ### [`v4.2.6`](https://togithub.com/gilamran/tsc-watch/blob/master/CHANGELOG.md#v426---1852020) [Compare Source](https://togithub.com/gilamran/tsc-watch/compare/a5f44b3bf1f29517e75795d66a3c8adbcf34f8eb...10554b2e9d926919252bf7c5e7c92c8281b21ca2) #### v4.2.6 - 18/5/2020 Using number 15 instead of SIGTERM to support POSIX standard - (Thanks to [@​Asarew](https://togithub.com/Asarew))

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