ComponentAccumulator: fix naming of public tools

Do not permanently rename public tools but use the namePrefix feature of gatherProps. This avoids that if a public tool is re-used in multiple places (and depending on the order of property serialization) that the tool name is set to "ToolSvc.MyTool" in the ToolHandle property.

I am slightly surprised that this didn't cause any problems so far.

Fixes ATR-28846. cc @tbold @wlampl

Control/AthenaConfiguration/python/ComponentAccumulator.py

@@ -1106,8 +1106,7 @@ class ComponentAccumulator(AccumulatorCachable):
 
         #Public Tools:
         for pt in self._publicTools:
-            pt.name = "ToolSvc." + pt.name
-            getCompsToBeAdded(pt)
+            getCompsToBeAdded(pt, namePrefix="ToolSvc.")
 
         #Auditors:
         for aud in self._auditors: