Bump Eto.Forms from 2.8.3 to 2.11.0 (#54)

---
updated-dependencies:
- dependency-name: Eto.Forms
  dependency-version: 2.11.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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GlennGUI/GlennGUI/GlennGUI.csproj

@@ -6,7 +6,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="Eto.Forms" Version="2.8.3" />
+        <PackageReference Include="Eto.Forms" Version="2.11.0" />
     </ItemGroup>
 
     <ItemGroup>