fix: starsky/starsky.foundation.thumbnailmeta/starsky.foundation.thum…

…bnailmeta.csproj to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-DOTNET-SIXLABORSIMAGESHARP-7547406
- https://snyk.io/vuln/SNYK-DOTNET-SIXLABORSIMAGESHARP-7547407

starsky/starsky.foundation.thumbnailmeta/starsky.foundation.thumbnailmeta.csproj

@@ -18,7 +18,7 @@
 
     <ItemGroup>
         <PackageReference Include="MetadataExtractor" Version="2.8.1"/>
-        <PackageReference Include="SixLabors.ImageSharp" Version="3.1.4" />
+        <PackageReference Include="SixLabors.ImageSharp" Version="3.1.5" />
     </ItemGroup>
 
     <PropertyGroup Condition=" '$(noSonar)' == 'true' ">