Overwrite the old rsp (#51703)

Author: lewing

src/mono/wasm/build/WasmApp.targets

@@ -435,7 +435,7 @@
       <_EmccLinkerResponseFile>$(_WasmIntermediateOutputPath)emcc-link.rsp</_EmccLinkerResponseFile>
     </PropertyGroup>
 
-    <WriteLinesToFile Lines="@(_EmccLinkerArguments)" File="$(_EmccLinkerResponseFile)" />
+    <WriteLinesToFile Lines="@(_EmccLinkerArguments)" File="$(_EmccLinkerResponseFile)" Overwrite="true" />
     <Message Text="Running emcc with @(_EmccLinkerArguments->'%(Identity)', ' ')" Importance="Low" />
     <Exec Command="emcc &quot;@$(_EmccLinkerResponseFile)&quot;" EnvironmentVariables="@(EmscriptenEnvVars)" />