Bump NLog from 6.0.7 to 6.1.0

---
updated-dependencies:
- dependency-name: NLog
  dependency-version: 6.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

WatermarkStamper/WatermarkStamper.csproj

@@ -127,7 +127,7 @@
       <Version>13.0.4</Version>
     </PackageReference>
     <PackageReference Include="NLog">
-      <Version>6.0.7</Version>
+      <Version>6.1.0</Version>
     </PackageReference>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />