Bump Microsoft.Extensions.Configuration.AzureKeyVault

Bumps [Microsoft.Extensions.Configuration.AzureKeyVault](https://github.com/aspnet/Extensions) from 3.1.10 to 3.1.11.
- [Release notes](https://github.com/aspnet/Extensions/releases)
- [Commits](https://github.com/aspnet/Extensions/commits)

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

FeatureFlags/FeatureFlags.FunctionalTests/FeatureFlags.FunctionalTests.csproj

@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.Configuration.AzureKeyVault" Version="3.1.10" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.AzureKeyVault" Version="3.1.11" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.8.3" />
     <PackageReference Include="MSTest.TestAdapter" Version="2.1.2" />
     <PackageReference Include="MSTest.TestFramework" Version="2.1.2" />