Bump mezzio/mezzio-session-ext from 1.16.0 to 1.17.0 (#372)

Bumps [mezzio/mezzio-session-ext](https://github.com/mezzio/mezzio-session-ext) from 1.16.0 to 1.17.0.
- [Release notes](https://github.com/mezzio/mezzio-session-ext/releases)
- [Commits](mezzio/mezzio-session-ext@1.16.0...1.17.0)

---
updated-dependencies:
- dependency-name: mezzio/mezzio-session-ext
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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