Bump tornado from 6.3.2 to 6.5.5 in /microservices/dashboard

Bumps [tornado](https://github.com/tornadoweb/tornado) from 6.3.2 to 6.5.5.
- [Changelog](https://github.com/tornadoweb/tornado/blob/master/docs/releases.rst)
- [Commits](tornadoweb/tornado@v6.3.2...v6.5.5)

---
updated-dependencies:
- dependency-name: tornado
  dependency-version: 6.5.5
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

microservices/dashboard/requirements.txt

@@ -1,4 +1,4 @@
-tornado==6.3.2
+tornado==6.5.5
 google-cloud-firestore==1.9.0
 google-api-python-client==1.7.11
 google-auth==1.35.0