CI-tests: specify default value for dict.pop operation (#207)

Author: bigcat88

tests/_talk_bot.py

@@ -57,7 +57,7 @@ def talk_bot_coverage(
 # in real program this is not needed, as bot enabling handler is called in the bots process itself and will reset it.
 @APP.delete("/reset_bot_secret")
 def reset_bot_secret():
-    os.environ.pop(talk_bot.__get_bot_secret("/talk_bot_coverage"))
+    os.environ.pop(talk_bot.__get_bot_secret("/talk_bot_coverage"), None)
     return Response()
 
 

tests/_talk_bot_async.py

@@ -45,7 +45,7 @@ async def talk_bot_coverage(
 # in real program this is not needed, as bot enabling handler is called in the bots process itself and will reset it.
 @APP.delete("/reset_bot_secret")
 async def reset_bot_secret():
-    os.environ.pop(talk_bot.__get_bot_secret("/talk_bot_coverage"))
+    os.environ.pop(talk_bot.__get_bot_secret("/talk_bot_coverage"), None)
     return Response()