Bump Avalonia from 0.10.12 to 0.10.18 (#87)

Bumps [Avalonia](https://github.com/AvaloniaUI/Avalonia) from 0.10.12 to 0.10.18.
- [Release notes](https://github.com/AvaloniaUI/Avalonia/releases)
- [Commits](https://github.com/AvaloniaUI/Avalonia/compare/0.10.12...0.10.18)

---
updated-dependencies:
- dependency-name: Avalonia
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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/Citrus.Avalonia.Sandbox/Citrus.Avalonia.Sandbox.csproj

@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Avalonia" Version="0.10.12" />
+    <PackageReference Include="Avalonia" Version="0.10.18" />
     <PackageReference Include="Avalonia.ReactiveUI" Version="0.10.12" />
     <PackageReference Include="Avalonia.LinuxFramebuffer" Version="0.10.12" />
     <PackageReference Include="Avalonia.Desktop" Version="0.10.12" />

src/Citrus.Avalonia/Citrus.Avalonia.csproj

@@ -21,7 +21,7 @@
     </ItemGroup>
 
     <ItemGroup>
-        <PackageReference Include="Avalonia" Version="0.10.12" />
+        <PackageReference Include="Avalonia" Version="0.10.18" />
     </ItemGroup>
 
     <ItemGroup>