Bump rollup and @antv/g2 in /zeppelin-web-angular

Bumps [rollup](https://github.com/rollup/rollup) to 2.80.0 and updates ancestor dependency [@antv/g2](https://github.com/antvis/g2). These dependencies need to be updated together.


Updates `rollup` from 2.79.2 to 2.80.0
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/v2.80.0/CHANGELOG.md)
- [Commits](rollup/rollup@v2.79.2...v2.80.0)

Updates `@antv/g2` from 3.5.19 to 5.4.8
- [Release notes](https://github.com/antvis/g2/releases)
- [Changelog](https://github.com/antvis/G2/blob/v5/CHANGELOG.md)
- [Commits](antvis/G2@3.5.19...v5.4.8)

---
updated-dependencies:
- dependency-name: rollup
  dependency-version: 2.80.0
  dependency-type: indirect
- dependency-name: "@antv/g2"
  dependency-version: 5.4.8
  dependency-type: direct:production
...

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Author: dependabot[bot]