build(deps): bump System.Collections.Immutable from 1.7.1 to 5.0.0 (#2575)

Bumps [System.Collections.Immutable](https://github.com/dotnet/runtime) from 1.7.1 to 5.0.0.
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](https://github.com/dotnet/runtime/commits)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

src/ReactiveUI.Fody.Analyzer/ReactiveUI.Fody.Analyzer.csproj

@@ -13,7 +13,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.2" PrivateAssets="all" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="3.7.0" PrivateAssets="all" />
-    <PackageReference Include="System.Collections.Immutable" Version="1.7.1" />
+    <PackageReference Include="System.Collections.Immutable" Version="5.0.0" />
   </ItemGroup>
 
   <ItemGroup>