Bump azure-servicebus from 7.12.2 to 7.12.3

Bumps [azure-servicebus](https://github.com/Azure/azure-sdk-for-python) from 7.12.2 to 7.12.3.
- [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-servicebus_7.12.2...azure-servicebus_7.12.3)

---
updated-dependencies:
- dependency-name: azure-servicebus
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -1,4 +1,4 @@
-azure-servicebus==7.12.2
+azure-servicebus==7.12.3
 boto3
 confluent-kafka==2.5.3
 fastavro==1.9.7