chore(deps): bump fastjsonschema from 2.19.1 to 2.20.0 (aws-powertools#4543)

Bumps [fastjsonschema](https://github.com/horejsek/python-fastjsonschema) from 2.19.1 to 2.20.0. - [Changelog](https://github.com/horejsek/python-fastjsonschema/blob/master/CHANGELOG.txt) - [Commits](horejsek/python-fastjsonschema@v2.19.1...v2.20.0) --- updated-dependencies: - dependency-name: fastjsonschema dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]