Bump tzdata from 2022.1 to 2022.2 in /demo/graph_tutorial

Bumps [tzdata](https://github.com/python/tzdata) from 2022.1 to 2022.2.
- [Release notes](https://github.com/python/tzdata/releases)
- [Changelog](https://github.com/python/tzdata/blob/master/NEWS.md)
- [Commits](python/tzdata@2022.1...2022.2)

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

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

Author: dependabot[bot]

demo/graph_tutorial/requirements.txt

@@ -14,5 +14,5 @@ PyYAML==6.0
 requests==2.28.1
 six==1.16.0
 sqlparse==0.4.2
-tzdata==2022.1
+tzdata==2022.2
 urllib3==1.26.11