chore(deps-dev): bump azure-identity from 1.14.1 to 1.15.0

Bumps [azure-identity](https://github.com/Azure/azure-sdk-for-python) from 1.14.1 to 1.15.0.
- [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_1.14.1...azure-identity_1.15.0)

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

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

Author: dependabot[bot]

requirements-dev.txt

@@ -12,7 +12,7 @@ attrs==23.1.0
 
 azure-core==1.29.5
 
-azure-identity==1.14.1
+azure-identity==1.15.0
 
 certifi==2023.7.22