[wasm] Restrict tests to browser/wasi only. (#84616)

* Restrict tests to wasm/wasi only.

* Plural, not singular.

Author: ilonatommy

src/libraries/System.Globalization/tests/Hybrid/Hybrid.WASM.Tests.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFramework>$(NetCoreAppCurrent)</TargetFramework>
+    <TargetFrameworks>$(NetCoreAppCurrent)-browser;$(NetCoreAppCurrent)-wasi</TargetFrameworks>
     <TestRuntime>true</TestRuntime>
     <HybridGlobalization>true</HybridGlobalization>
   </PropertyGroup>