Bump @rollup/plugin-terser from 0.4.4 to 1.0.0 (#255)

Bumps [@rollup/plugin-terser](https://github.com/rollup/plugins/tree/HEAD/packages/terser) from 0.4.4 to 1.0.0.
- [Changelog](https://github.com/rollup/plugins/blob/master/packages/terser/CHANGELOG.md)
- [Commits](https://github.com/rollup/plugins/commits/beep-v1.0.0/packages/terser)

---
updated-dependencies:
- dependency-name: "@rollup/plugin-terser"
  dependency-version: 1.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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