chore: bump msal from 1.14.0 to 1.22.0 in /examples/msal-python

Bumps [msal](https://github.com/AzureAD/microsoft-authentication-library-for-python) from 1.14.0 to 1.22.0.
- [Release notes](https://github.com/AzureAD/microsoft-authentication-library-for-python/releases)
- [Commits](AzureAD/microsoft-authentication-library-for-python@1.14.0...1.22.0)

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

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

examples/msal-python/requirements.txt

@@ -1,2 +1,2 @@
 azure-keyvault-secrets==4.7.0
-msal==1.14.0
+msal==1.22.0