build(deps): bump probot from 13.4.2 to 13.4.3

Bumps [probot](https://github.com/probot/probot) from 13.4.2 to 13.4.3.
- [Release notes](https://github.com/probot/probot/releases)
- [Commits](probot/probot@v13.4.2...v13.4.3)

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

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