build(deps): bump connexion from 2.14.1 to 2.14.2 in /backend

Bumps [connexion](https://github.com/zalando/connexion) from 2.14.1 to 2.14.2.
- [Release notes](https://github.com/zalando/connexion/releases)
- [Commits](spec-first/connexion@2.14.1...2.14.2)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

backend/requirements.txt

@@ -1,5 +1,5 @@
 -e ../tools #egg=code-coverage-tools
-connexion==2.14.1
+connexion==2.14.2
 datadog==0.44.0
 Flask==2.2.2
 Flask-Cors==3.0.10