fixes hyperledger#3186: check that the section handler_timed_file_han…

…dler exists before trying to modify it (hyperledger#3187)

Signed-off-by: Ricky Ng-Adam <ricky.ng-adam-ext@mcn.gouv.qc.ca>
Co-authored-by: Stephen Curran <swcurran@gmail.com>

aries_cloudagent/config/logging.py

@@ -118,7 +118,7 @@ def fileConfig(
         except configparser.ParsingError as e:
             raise RuntimeError(f"{fname} is invalid: {e}")
 
-    if new_file_path:
+    if new_file_path and cp.has_section("handler_timed_file_handler"):
         cp.set(
             "handler_timed_file_handler",
             "args",