update SixLabors.Shaeps to 1.0.0-ci0018

Author: antonfirsov

src/ImageSharp.Drawing/ImageSharp.Drawing.csproj

@@ -38,7 +38,7 @@
     </ItemGroup>
     <ItemGroup>
         <PackageReference Include="SixLabors.Core" Version="1.0.0-beta0005" />
-        <PackageReference Include="SixLabors.Shapes" Version="1.0.0-beta0004" />
+        <PackageReference Include="SixLabors.Shapes" Version="1.0.0-ci0018" />
         <PackageReference Include="SixLabors.Shapes.Text" Version="1.0.0-beta0004" />
         <AdditionalFiles Include="..\..\stylecop.json" />
         <PackageReference Include="StyleCop.Analyzers" Version="1.1.0-beta004">