Bump tornado from 6.4.1 to 6.5 in /met-cron

Bumps [tornado](https://github.com/tornadoweb/tornado) from 6.4.1 to 6.5.
- [Changelog](https://github.com/tornadoweb/tornado/blob/master/docs/releases.rst)
- [Commits](tornadoweb/tornado@v6.4.1...v6.5.0)

---
updated-dependencies:
- dependency-name: tornado
  dependency-version: '6.5'
  dependency-type: direct:production
...

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

Author: dependabot[bot]

met-cron/requirements.txt

@@ -50,7 +50,7 @@ secure==0.3.0
 six==1.16.0
 threadloop==1.0.2
 thrift==0.20.0
-tornado==6.4.1
+tornado==6.5
 typing_extensions==4.12.2
 urllib3==2.2.2
 zipp==3.19.2