Bump Microsoft.CodeAnalysis.CSharp.Workspaces from 4.14.0 to 5.3.0 (#422)

---
updated-dependencies:
- dependency-name: Microsoft.CodeAnalysis.CSharp.Workspaces
  dependency-version: 5.3.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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src/CommunityToolkit.Maui.Markup.Benchmarks/CommunityToolkit.Maui.Markup.Benchmarks.csproj

@@ -19,7 +19,7 @@
     <PackageReference Include="BenchmarkDotNet" Version="0.15.8" />
     <PackageReference Include="BenchmarkDotNet.Diagnostics.Windows" Version="0.14.0" Condition="'$(OS)' == 'Windows_NT'" />
     <PackageReference Include="CommunityToolkit.Mvvm" Version="8.4.0" />
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.14.0" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="5.3.0" />
     <PackageReference Include="Microsoft.Maui.Controls" Version="$(MauiPackageVersion)" />
   </ItemGroup>