Bump Azure.Identity from 1.11.0 to 1.12.0

Bumps [Azure.Identity](https://github.com/Azure/azure-sdk-for-net) from 1.11.0 to 1.12.0.
- [Release notes](https://github.com/Azure/azure-sdk-for-net/releases)
- [Commits](Azure/azure-sdk-for-net@Azure.Identity_1.11.0...Azure.Identity_1.12.0)

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

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Author: dependabot[bot]

GraphMailRelay/GraphMailRelay.csproj

@@ -14,7 +14,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-		<PackageReference Include="Azure.Identity" Version="1.11.0" />
+		<PackageReference Include="Azure.Identity" Version="1.12.0" />
 		<PackageReference Include="McGuireV10.GenericHostBuilderLogger" Version="1.0.0" />
 		<PackageReference Include="Microsoft.Extensions.Hosting" Version="8.0.0" />
 		<PackageReference Include="Microsoft.Extensions.Hosting.WindowsServices" Version="8.0.0" />