Update Ccdb.py (#1840)

Proper error handling in CCDB.py

Author: Barthelemy

Framework/script/RepoCleaner/qcrepocleaner/Ccdb.py

@@ -198,8 +198,8 @@ def updateValidity(self, version: ObjectVersion, valid_from: int, valid_to: int,
             r.raise_for_status()
             self.counter_validity_updated += 1
         except requests.exceptions.RequestException as e:  
-            print(e)
-            sys.exit(1)  # really ?
+            logging.error(f"Exception in updateValidity: {traceback.format_exc()}")
+
 
     def putVersion(self, version: ObjectVersion, data):
         '''