build(deps): bump plotters from 0.3.2 to 0.3.4 (#4620)

Bumps [plotters](https://github.com/plotters-rs/plotters) from 0.3.2 to 0.3.4.
- [Release notes](https://github.com/plotters-rs/plotters/releases)
- [Changelog](https://github.com/plotters-rs/plotters/blob/master/CHANGELOG.md)
- [Commits](plotters-rs/plotters@v0.3.2...v0.3.4)

---
updated-dependencies:
- dependency-name: plotters
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>