Bump SixLabors.ImageSharp from 3.1.6 to 3.1.7 in /src (#445)

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
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

src/Directory.Packages.props

@@ -10,7 +10,7 @@
     <PackageVersion Include="NUnit" Version="4.3.2" />
     <PackageVersion Include="NUnit3TestAdapter" Version="5.0.0" />
     <PackageVersion Include="ProjectDefaults" Version="1.0.148" />
-    <PackageVersion Include="SixLabors.ImageSharp" Version="3.1.6" />
+    <PackageVersion Include="SixLabors.ImageSharp" Version="3.1.7" />
     <PackageVersion Include="Verify" Version="28.13.0" />
     <PackageVersion Include="Verify.DiffPlex" Version="3.1.2" />
     <PackageVersion Include="Verify.ImageMagick" Version="3.6.0" />