Fix restore

[glen-84]

Summary of the changes (Less than 80 chars)

• Fix restore.

[Copilot]

Pull request overview

Adjusts the Mocha demo catalog test project’s target framework configuration to resolve restore/build issues caused by inherited multi-targeting settings.

Changes:

• Switch the test project from TargetFramework to TargetFrameworks and pin it to net10.0 to explicitly override inherited TargetFrameworks.

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[Copilot]

This project now uses TargetFrameworks with a single TFM. In a few places in this repo, single-target projects that use TargetFrameworks also set TargetFramework to the same value (e.g. src/HotChocolate/Fusion/benchmarks/Fusion.Execution.Benchmarks/Fusion.Execution.Benchmarks.csproj:5-6, src/Mocha/benchmarks/Directory.Build.props:4-5). Consider adding TargetFramework here as well to align with that pattern (or alternatively switch back to TargetFramework and explicitly clear/override any inherited TargetFrameworks).

Suggested change

	<TargetFrameworks>net10.0</TargetFrameworks>
	<TargetFrameworks>net10.0</TargetFrameworks>
	<TargetFramework>net10.0</TargetFramework>

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 0.00%. Comparing base (666707b) to head (e53fdfb).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@     Coverage Diff      @@
##   main   #9542   +/-   ##
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