Bump strawberry-graphql from 0.284.2 to 0.285.0 in /backend (#2598)

Bumps [strawberry-graphql](https://github.com/strawberry-graphql/strawberry) from 0.284.2 to 0.285.0.
- [Release notes](https://github.com/strawberry-graphql/strawberry/releases)
- [Changelog](https://github.com/strawberry-graphql/strawberry/blob/main/CHANGELOG.md)
- [Commits](strawberry-graphql/strawberry@0.284.2...0.285.0)

---
updated-dependencies:
- dependency-name: strawberry-graphql
  dependency-version: 0.285.0
  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]

backend/poetry.lock

@@ -44,7 +44,7 @@ requests = "^2.32.5"
 sentry-sdk = { extras = [ "django" ], version = "^2.20.0" }
 slack-bolt = "^1.22.0"
 slack-sdk = "^3.37.0"
-strawberry-graphql = { extras = [ "django" ], version = "^0.284.1" }
+strawberry-graphql = { extras = [ "django" ], version = "^0.285.0" }
 strawberry-graphql-django = "^0.67.0"
 thefuzz = "^0.22.1"
 pyparsing = "^3.2.3"