Bump NLog from 4.7.1 to 4.7.2 (#426)

Bumps [NLog](https://github.com/NLog/NLog) from 4.7.1 to 4.7.2.
- [Release notes](https://github.com/NLog/NLog/releases)
- [Changelog](https://github.com/NLog/NLog/blob/dev/CHANGELOG.md)
- [Commits](NLog/NLog@v4.7.1...v4.7.2)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

src/NLog.Extensions.Logging/NLog.Extensions.Logging.csproj

@@ -63,7 +63,7 @@ Full changelog: https://github.com/NLog/NLog.Extensions.Logging/blob/master/CHAN
     <DefineConstants>$(DefineConstants);NETSTANDARD</DefineConstants>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="NLog" Version="4.7.1" />
+    <PackageReference Include="NLog" Version="4.7.2" />
   </ItemGroup>
   <ItemGroup Condition=" '$(TargetFramework)' == 'net451' ">
     <PackageReference Include="Microsoft.Extensions.Configuration.Abstractions" Version="1.0.0" />