Bump SixLabors.ImageSharp from 3.1.2 to 3.1.3

Bumps [SixLabors.ImageSharp](https://github.com/SixLabors/ImageSharp) from 3.1.2 to 3.1.3.
- [Release notes](https://github.com/SixLabors/ImageSharp/releases)
- [Commits](SixLabors/ImageSharp@v3.1.2...v3.1.3)

---
updated-dependencies:
- dependency-name: SixLabors.ImageSharp
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

YAMS-LIB/YAMS-LIB.csproj

@@ -23,7 +23,7 @@
 
     <ItemGroup>
         <PackageReference Include="Macross.Json.Extensions" Version="3.0.0"/>
-        <PackageReference Include="SixLabors.ImageSharp" Version="3.1.2"/>
+        <PackageReference Include="SixLabors.ImageSharp" Version="3.1.3"/>
         <PackageReference Include="NaturalSort.Extension" Version="4.2.0" />
     </ItemGroup>