Upgrade Azure.Identity to 1.11.4 (#2271)

Author: rayokota

src/Confluent.SchemaRegistry.Encryption.Azure/Confluent.SchemaRegistry.Encryption.Azure.csproj

@@ -29,7 +29,7 @@
     </ItemGroup>
 
     <ItemGroup>
-        <PackageReference Include="Azure.Identity" Version="1.11.3" />
+        <PackageReference Include="Azure.Identity" Version="1.11.4" />
         <PackageReference Include="Azure.Security.KeyVault.Keys" Version="4.6.0" />
     </ItemGroup>