chore(deps): bump azure-identity from 1.18.0 to 1.19.0

Bumps [azure-identity](https://github.com/Azure/azure-sdk-for-python) from 1.18.0 to 1.19.0.
- [Release notes](https://github.com/Azure/azure-sdk-for-python/releases)
- [Changelog](https://github.com/Azure/azure-sdk-for-python/blob/main/doc/esrp_release.md)
- [Commits](Azure/azure-sdk-for-python@azure-identity_1.18.0...azure-identity_1.19.0)

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

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

pyproject.toml

@@ -12,7 +12,7 @@ maintainers = [
 dependencies = [
     "Authlib==1.3.2",
     "azure-keyvault-secrets==4.8.0",
-    "azure-identity==1.18.0",
+    "azure-identity==1.19.0",
     "Django==5.1.1",
     "django-csp==3.8",
     "django-admin-sortable2==2.2.3",