Bump SixLabors.ImageSharp from 2.1.7 to 2.1.8 in /ClubSite (#35)

Bumps [SixLabors.ImageSharp](https://github.com/SixLabors/ImageSharp) from 2.1.7 to 2.1.8.
- [Release notes](https://github.com/SixLabors/ImageSharp/releases)
- [Commits](SixLabors/ImageSharp@v2.1.7...v2.1.8)

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

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ClubSite/ClubSite.csproj

@@ -33,7 +33,7 @@
     <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="8.0.3" />
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="8.0.1" />
     <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="8.0.2" />
-    <PackageReference Include="SixLabors.ImageSharp" Version="2.1.7" />
+    <PackageReference Include="SixLabors.ImageSharp" Version="2.1.8" />
   </ItemGroup>
   <ItemGroup>
     <Compile Update="Resources\StatusCodes.Designer.cs">