Bump SixLabors.ImageSharp from 3.1.6 to 3.1.7 in /src/Kattbot (#213)

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
...

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Author: dependabot[bot]

src/Kattbot/Kattbot.csproj

@@ -29,7 +29,7 @@
         <PackageReference Include="Microsoft.Extensions.Hosting.Systemd" Version="8.0.0" />
         <PackageReference Include="Microsoft.Extensions.Http" Version="8.0.0" />
         <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="8.0.4" />
-        <PackageReference Include="SixLabors.ImageSharp" Version="3.1.6" />
+        <PackageReference Include="SixLabors.ImageSharp" Version="3.1.7" />
         <PackageReference Include="SixLabors.ImageSharp.Drawing" Version="2.1.5" />
         <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.556">
             <PrivateAssets>all</PrivateAssets>