Increase the version of the CuraContainer stack

Since we added a new layer to it, it's version is one level higher (*DING*)

CURA-6534

cura/CuraApplication.py

@@ -100,6 +100,7 @@ from cura.Settings.ContainerManager import ContainerManager
 from cura.Settings.CuraContainerRegistry import CuraContainerRegistry
 from cura.Settings.CuraFormulaFunctions import CuraFormulaFunctions
 from cura.Settings.ExtruderManager import ExtruderManager
+from cura.Settings.ExtruderStack import ExtruderStack
 from cura.Settings.MachineManager import MachineManager
 from cura.Settings.MachineNameValidator import MachineNameValidator
 from cura.Settings.MaterialSettingsVisibilityHandler import MaterialSettingsVisibilityHandler
@@ -446,8 +447,8 @@ class CuraApplication(QtApplication):
             {
                 ("quality", InstanceContainer.Version * 1000000 + self.SettingVersion):            (self.ResourceTypes.QualityInstanceContainer, "application/x-uranium-instancecontainer"),
                 ("quality_changes", InstanceContainer.Version * 1000000 + self.SettingVersion):    (self.ResourceTypes.QualityChangesInstanceContainer, "application/x-uranium-instancecontainer"),
-                ("machine_stack", ContainerStack.Version * 1000000 + self.SettingVersion):         (self.ResourceTypes.MachineStack, "application/x-cura-globalstack"),
-                ("extruder_train", ContainerStack.Version * 1000000 + self.SettingVersion):        (self.ResourceTypes.ExtruderStack, "application/x-cura-extruderstack"),
+                ("machine_stack", GlobalStack.Version * 1000000 + self.SettingVersion):         (self.ResourceTypes.MachineStack, "application/x-cura-globalstack"),
+                ("extruder_train", ExtruderStack.Version * 1000000 + self.SettingVersion):        (self.ResourceTypes.ExtruderStack, "application/x-cura-extruderstack"),
                 ("preferences", Preferences.Version * 1000000 + self.SettingVersion):              (Resources.Preferences, "application/x-uranium-preferences"),
                 ("user", InstanceContainer.Version * 1000000 + self.SettingVersion):               (self.ResourceTypes.UserInstanceContainer, "application/x-uranium-instancecontainer"),
                 ("definition_changes", InstanceContainer.Version * 1000000 + self.SettingVersion): (self.ResourceTypes.DefinitionChangesContainer, "application/x-uranium-instancecontainer"),

cura/Settings/CuraContainerStack.py

@@ -37,6 +37,8 @@ from . import Exceptions
 #   This also means that operations on the stack that modifies the container ordering is prohibited and
 #   will raise an exception.
 class CuraContainerStack(ContainerStack):
+    Version = 5  # type: int
+
     def __init__(self, container_id: str) -> None:
         super().__init__(container_id)