Fix GCC Build Errors

- Fix gcc error caused by implicit conversion of Qt::ByteArray to const char*
- Fix Linker errors to QtTest in AtomToolsFramework.Tests and ScriptCanvasDeveloper.Editor

Signed-off-by: Steve Pham <82231385+spham-amzn@users.noreply.github.com>

Code/Framework/AzToolsFramework/AzToolsFramework/Entity/EditorEntityContextComponent.cpp

@@ -447,7 +447,7 @@ namespace AzToolsFramework
         else
         {
             loadedSuccessfully = static_cast<PrefabEditorEntityOwnershipService*>(m_entityOwnershipService.get())->LoadFromStream(
-                stream, AZStd::string_view(levelPakFile.toUtf8(), levelPakFile.size()) );
+                stream, AZStd::string_view(levelPakFile.toUtf8().constData(), levelPakFile.size()) );
 
         }