Use fmt::format for LOGMESSAGERENDER

The format string can be checked at compile time. It will be easier to
transition to `std::format`.

source/ps/scripting/JSInterface_Game.cpp

@@ -190,7 +190,7 @@ void DumpTerrainMipmap()
 	g_Game->GetWorld()->GetTerrain().GetHeightMipmap().DumpToDisk(filename);
 	OsPath realPath;
 	g_VFS->GetRealPath(filename, realPath);
-	LOGMESSAGERENDER("Terrain mipmap written to '%s'", realPath.string8());
+	LOGMESSAGERENDER("Terrain mipmap written to '{}'", realPath.string8());
 }
 
 void RegisterScriptFunctions(const Script::Request& rq)