Bump SixLabors.ImageSharp from 3.1.6 to 3.1.7 in /backend/Discapp.Worker

Bumps [SixLabors.ImageSharp](https://github.com/SixLabors/ImageSharp) from 3.1.6 to 3.1.7.
- [Release notes](https://github.com/SixLabors/ImageSharp/releases)
- [Commits](SixLabors/ImageSharp@v3.1.6...v3.1.7)

---
updated-dependencies:
- dependency-name: SixLabors.ImageSharp
  dependency-type: direct:production
...

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

Author: dependabot[bot]

backend/Discapp.Worker/Discapp.Worker.csproj

@@ -19,7 +19,7 @@
     <PackageReference Include="Microsoft.Extensions.Hosting" Version="9.0.1" />
     <PackageReference Include="MySql.EntityFrameworkCore" Version="9.0.0" />
     <PackageReference Include="Pomelo.EntityFrameworkCore.MySql" Version="8.0.2" />
-    <PackageReference Include="SixLabors.ImageSharp" Version="3.1.6" />
+    <PackageReference Include="SixLabors.ImageSharp" Version="3.1.7" />
     <PackageReference Include="System.Net.Http.Json" Version="9.0.1" />
   </ItemGroup>