build(deps-dev): bump rollup-plugin-ts from 3.2.0 to 3.4.5

Bumps [rollup-plugin-ts](https://github.com/wessberg/rollup-plugin-ts) from 3.2.0 to 3.4.5.
- [Release notes](https://github.com/wessberg/rollup-plugin-ts/releases)
- [Changelog](https://github.com/wessberg/rollup-plugin-ts/blob/master/CHANGELOG.md)
- [Commits](wessberg/rollup-plugin-ts@v3.2.0...v3.4.5)

---
updated-dependencies:
- dependency-name: rollup-plugin-ts
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>