build(deps): bump beancount from 2.3.6 to 3.0.0

Bumps [beancount](https://github.com/beancount/beancount) from 2.3.6 to 3.0.0.
- [Changelog](https://github.com/beancount/beancount/blob/master/CHANGES)
- [Commits](https://github.com/beancount/beancount/commits)

---
updated-dependencies:
- dependency-name: beancount
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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