Collection Manager: Fix Regression. Task: T69577

Update function call in the Re-numerate QCD Slots operator
with it's new name.

object_collection_manager/__init__.py

@@ -22,7 +22,7 @@ bl_info = {
     "name": "Collection Manager",
     "description": "Manage collections and their objects",
     "author": "Ryan Inch",
-    "version": (2,5,0),
+    "version": (2,5,1),
     "blender": (2, 80, 0),
     "location": "View3D - Object Mode (Shortcut - M)",
     "warning": '',  # used for warning icon and text in addons panel

object_collection_manager/qcd_operators.py

@@ -263,7 +263,7 @@ class RenumerateQCDSlots(Operator):
     def invoke(self, context, event):
         global qcd_slots
 
-        qcd_slots.clear()
+        qcd_slots.clear_slots()
 
         if event.ctrl:
             qcd_slots.overrides.clear()