Bump kinto from 13.0.1 to 13.1.0

Bumps [kinto](https://github.com/Kinto/kinto) from 13.0.1 to 13.1.0.
- [Release notes](https://github.com/Kinto/kinto/releases)
- [Changelog](https://github.com/Kinto/kinto/blob/master/CHANGELOG.rst)
- [Commits](Kinto/kinto@13.0.1...13.1.0)

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

requirements.txt

@@ -14,7 +14,7 @@ iso8601==0.1.12
 jsonpatch==1.23
 jsonpointer==2.0
 jsonschema==3.0.1
-kinto==13.0.1
+kinto==13.1.0
 logging-color-formatter==1.0.2
 PasteDeploy==2.0.1
 plaster==1.0