Fix build when UseProjectReferenceToAzureClients=true (Azure#49568)

Author: christothes

sdk/identity/Azure.Identity.Broker/src/Azure.Identity.Broker.csproj

@@ -14,7 +14,7 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Azure.Identity" VersionOverride="1.14.0-beta.3" />
-    <PackageReference Include="Microsoft.Identity.Client" />
+    <PackageReference Include="Microsoft.Identity.Client" VersionOverride="4.71.1-preview" />
     <PackageReference Include="Microsoft.Identity.Client.Extensions.Msal" />
     <PackageReference Include="Microsoft.Identity.Client.Broker" />
   </ItemGroup>