build(deps): bump faker from 17.5.0 to 17.6.0 in /demos/chat (#524)

Bumps [faker](https://github.com/joke2k/faker) from 17.5.0 to 17.6.0.
- [Release notes](https://github.com/joke2k/faker/releases)
- [Changelog](https://github.com/joke2k/faker/blob/master/CHANGELOG.md)
- [Commits](joke2k/faker@v17.5.0...v17.6.0)

---
updated-dependencies:
- dependency-name: faker
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

demos/chat/requirements.txt

@@ -1,3 +1,3 @@
 aiohttp==3.8.4
 aiohttp-jinja2==1.5.1
-faker==17.5.0
+faker==17.6.0