Bump Azure.Identity from 1.12.0 to 1.12.1 in /src (#4480)

Bumps [Azure.Identity](https://github.com/Azure/azure-sdk-for-net) from 1.12.0 to 1.12.1.
- [Release notes](https://github.com/Azure/azure-sdk-for-net/releases)
- [Commits](Azure/azure-sdk-for-net@Azure.Identity_1.12.0...Azure.Identity_1.12.1)

---
updated-dependencies:
- dependency-name: Azure.Identity
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

src/Directory.Packages.props

@@ -7,7 +7,7 @@
     <PackageVersion Include="Autofac" Version="8.1.0" />
     <PackageVersion Include="AWSSDK.CloudWatch" Version="3.7.401.22" />
     <PackageVersion Include="AWSSDK.SecurityToken" Version="3.7.400.24" />
-    <PackageVersion Include="Azure.Identity" Version="1.12.0" />
+    <PackageVersion Include="Azure.Identity" Version="1.12.1" />
     <PackageVersion Include="Azure.Monitor.Query" Version="1.5.0" />
     <PackageVersion Include="Azure.ResourceManager.ServiceBus" Version="1.0.1" />
     <PackageVersion Include="ByteSize" Version="2.1.2" />