Bump frozenlist from 1.4.1 to 1.8.0 (#2947)

Bumps [frozenlist](https://github.com/aio-libs/frozenlist) from 1.4.1 to 1.8.0.
- [Release notes](https://github.com/aio-libs/frozenlist/releases)
- [Changelog](https://github.com/aio-libs/frozenlist/blob/master/CHANGES.rst)
- [Commits](aio-libs/frozenlist@v1.4.1...v1.8.0)

---
updated-dependencies:
- dependency-name: frozenlist
  dependency-version: 1.8.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Pamela Fox <pamelafox@microsoft.com>

Author: dependabot[bot]

app/backend/requirements.txt

@@ -101,7 +101,7 @@ exceptiongroup==1.3.1
     #   taskgroup
 flask==3.1.2
     # via quart
-frozenlist==1.4.1
+frozenlist==1.8.0
     # via
     #   aiohttp
     #   aiosignal