Bump certifi from 2022.6.15.1 to 2022.9.14 in /demo/graphtutorial

Bumps [certifi](https://github.com/certifi/python-certifi) from 2022.6.15.1 to 2022.9.14.
- [Release notes](https://github.com/certifi/python-certifi/releases)
- [Commits](certifi/python-certifi@2022.06.15.1...2022.09.14)

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

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

Author: dependabot[bot]

demo/graphtutorial/requirements.txt

@@ -1,6 +1,6 @@
 azure-core==1.25.1
 azure-identity==1.11.0
-certifi==2022.6.15.1
+certifi==2022.9.14
 cffi==1.15.1
 charset-normalizer==2.1.1
 cryptography==37.0.4