Fix includes in source/scriptinterface

Make include-what-you-use happy with files in source/scriptinterface and
fix what needs to be fixed.

Ref: #8086
Signed-off-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>

source/scriptinterface/tests/test_ScriptInterface.h

@@ -1,4 +1,4 @@
-/* Copyright (C) 2021 Wildfire Games.
+/* Copyright (C) 2025 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. is free software: you can redistribute it and/or modify
@@ -17,15 +17,22 @@
 
 #include "lib/self_test.h"
 
+#include "lib/path.h"
+#include "lib/types.h"
+#include "ps/CLogger.h"
 #include "scriptinterface/FunctionWrapper.h"
 #include "scriptinterface/JSON.h"
 #include "scriptinterface/Object.h"
+#include "scriptinterface/ScriptConversions.h"
 #include "scriptinterface/ScriptInterface.h"
+#include "scriptinterface/ScriptRequest.h"
 #include "scriptinterface/StructuredClone.h"
 
-#include "ps/CLogger.h"
-
 #include <boost/random/linear_congruential.hpp>
+#include <js/RootingAPI.h>
+#include <js/TypeDecls.h>
+#include <js/Value.h>
+#include <string>
 
 class TestScriptInterface : public CxxTest::TestSuite
 {