Bump SixLabors.ImageSharp from 2.0.0 to 2.1.3 (#7)

Bumps [SixLabors.ImageSharp](https://github.com/SixLabors/ImageSharp) from 2.0.0 to 2.1.3.
- [Release notes](https://github.com/SixLabors/ImageSharp/releases)
- [Commits](SixLabors/ImageSharp@v2.0.0...v2.1.3)

---
updated-dependencies:
- dependency-name: SixLabors.ImageSharp
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

src/TurnerSoftware.Vibrancy/TurnerSoftware.Vibrancy.csproj

@@ -12,7 +12,7 @@
 	</PropertyGroup>
 
 	<ItemGroup>
-		<PackageReference Include="SixLabors.ImageSharp" Version="2.0.0" />
+		<PackageReference Include="SixLabors.ImageSharp" Version="2.1.3" />
 	</ItemGroup>
 
 </Project>