Bump SixLabors.ImageSharp.Drawing from 2.1.5 to 2.1.7 (#62)

---
updated-dependencies:
- dependency-name: SixLabors.ImageSharp.Drawing
  dependency-version: 2.1.7
  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]

growing-image-sync.csproj

@@ -18,7 +18,7 @@
     <PackageReference Include="Microsoft.Azure.Functions.Worker.ApplicationInsights" Version="2.0.0" />
     <PackageReference Include="Azure.Storage.Blobs" Version="12.26.0" />
     <PackageReference Include="SixLabors.Fonts" Version="2.1.3" />
-    <PackageReference Include="SixLabors.ImageSharp.Drawing" Version="2.1.5" />
+    <PackageReference Include="SixLabors.ImageSharp.Drawing" Version="2.1.7" />
     <PackageReference Include="System.Net.Http" Version="4.3.4" />
   </ItemGroup>
   <ItemGroup>