build(deps): Bump the all group with 2 updates

Bumps the all group with 2 updates: SixLabors.ImageSharp and [System.Drawing.Common](https://github.com/dotnet/winforms).


Updates `SixLabors.ImageSharp` from 2.1.7 to 3.1.5

Updates `System.Drawing.Common` from 8.0.7 to 8.0.8
- [Release notes](https://github.com/dotnet/winforms/releases)
- [Changelog](https://github.com/dotnet/winforms/blob/main/docs/release-activity.md)
- [Commits](dotnet/winforms@v8.0.7...v8.0.8)

---
updated-dependencies:
- dependency-name: SixLabors.ImageSharp
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: all
- dependency-name: System.Drawing.Common
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: all
...

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

src/libs/QrCodes.System.Drawing/QrCodes.System.Drawing.csproj

@@ -15,7 +15,7 @@
   </ItemGroup>
 
   <ItemGroup Condition=" '$(TargetFramework)' != 'net4.6.2' ">
-    <PackageReference Include="System.Drawing.Common" Version="8.0.7" />
+    <PackageReference Include="System.Drawing.Common" Version="8.0.8" />
   </ItemGroup>
 
 </Project>

src/tests/QrCodes.Tests/QrCodes.Tests.csproj

@@ -16,6 +16,7 @@
 
 	<ItemGroup>
 		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
+		<PackageReference Include="SixLabors.ImageSharp" Version="3.1.5" />
 		<PackageReference Include="xunit" Version="2.9.0" />
 		<PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">
 			<PrivateAssets>all</PrivateAssets>