Wasm.Build.Tests should not use local targeting runtime pack, fixes #53405 (#53410)

src/tests/BuildWasmApps/Wasm.Build.Tests/Wasm.Build.Tests.csproj

@@ -10,6 +10,8 @@
     <WasmGenerateAppBundle>false</WasmGenerateAppBundle>
     <EnableDefaultItems>true</EnableDefaultItems>
     <DefineConstants Condition="'$(ContinuousIntegrationBuild)' != 'true'">TEST_DEBUG_CONFIG_ALSO</DefineConstants>
+    <!-- This project should not build against the live built .NETCoreApp targeting pack as it contributes to the build itself. -->
+    <UseLocalTargetingRuntimePack>false</UseLocalTargetingRuntimePack>
 
     <!-- don't run any wasm build steps -->
     <WasmBuildAppAfterThisTarget />