Bump iso8601 from 0.1.14 to 0.1.16 (#421)
Bump iso8601 from 0.1.14 to 0.1.16 (#421)

Bumps [iso8601](https://github.com/micktwomey/pyiso8601) from 0.1.14 to 0.1.16.
- [Release notes](https://github.com/micktwomey/pyiso8601/releases)
- [Commits](https://github.com/micktwomey/pyiso8601/compare/0.1.14...0.1.16)

---
updated-dependencies:
- dependency-name: iso8601
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Kinto/kinto-attachment