Bump SixLabors.ImageSharp from 3.1.11 to 3.1.12

---
updated-dependencies:
- dependency-name: SixLabors.ImageSharp
  dependency-version: 3.1.12
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Refresh.Core/Refresh.Core.csproj

@@ -26,7 +26,7 @@
         <PackageReference Include="NPTicket" Version="3.1.1" />
         <PackageReference Include="Pfim" Version="0.11.3" />
         <PackageReference Include="SharpZipLib" Version="1.4.2" />
-        <PackageReference Include="SixLabors.ImageSharp" Version="3.1.11" />
+        <PackageReference Include="SixLabors.ImageSharp" Version="3.1.12" />
         <PackageReference Include="EasyHotReload" Version="1.0.0" />
     </ItemGroup>