chore(deps): bump Avalonia from 11.2.5 to 11.2.6 in the all group

Bumps the all group with 1 update: [Avalonia](https://github.com/AvaloniaUI/Avalonia).


Updates `Avalonia` from 11.2.5 to 11.2.6
- [Release notes](https://github.com/AvaloniaUI/Avalonia/releases)
- [Commits](AvaloniaUI/Avalonia@11.2.5...11.2.6)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

src/Directory.Packages.props

@@ -17,7 +17,7 @@
     <PackageVersion Include="MSTest.TestAdapter" Version="3.8.3" />
     <PackageVersion Include="MSTest.TestFramework" Version="3.8.3" />
     <PackageVersion Include="FluentAssertions" Version="8.2.0" />
-    <PackageVersion Include="Avalonia" Version="11.2.5" />
+    <PackageVersion Include="Avalonia" Version="11.2.6" />
     <PackageVersion Include="Microsoft.CodeAnalysis.CSharp.SourceGenerators.Testing.MSTest" Version="1.1.2" />
     <PackageVersion Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.13.0" />
     <PackageVersion Include="Verify.MSTest" Version="28.16.0" />