Bump kinto-fxa from 2.5.2 to 2.5.3
Bump kinto-fxa from 2.5.2 to 2.5.3

Bumps [kinto-fxa](https://github.com/Kinto/kinto-fxa) from 2.5.2 to 2.5.3.
- [Release notes](https://github.com/Kinto/kinto-fxa/releases)
- [Changelog](https://github.com/Kinto/kinto-fxa/blob/master/CHANGELOG.rst)
- [Commits](https://github.com/Kinto/kinto-fxa/compare/2.5.2...2.5.3)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
mozilla-services/kinto-dist,Kinto/kinto-dist,Kinto/kinto-dist,mozilla-services/kinto-dist