chore(deps): bump fastjsonschema from 2.15.2 to 2.15.3

Bumps [fastjsonschema](https://github.com/seznam/python-fastjsonschema) from 2.15.2 to 2.15.3.
- [Release notes](https://github.com/seznam/python-fastjsonschema/releases)
- [Changelog](https://github.com/horejsek/python-fastjsonschema/blob/master/CHANGELOG.txt)
- [Commits](horejsek/python-fastjsonschema@v2.15.2...v2.15.3)

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

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

Author: dependabot[bot]