Bump Microsoft.Extensions.Configuration.FileExtensions (#173)

Author: dependabot-preview[bot]

src/Hocon.Extensions.Configuration/Hocon.Extensions.Configuration.csproj

@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.Configuration.FileExtensions" Version="3.1.0" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.FileExtensions" Version="3.1.1" />
   </ItemGroup>
 
   <ItemGroup>