examples: avoid "except" for BaseException in examples

lgtm.com flags this as "Except block directly handles BaseException".

examples/python/gi/checkpoint.py

@@ -134,7 +134,7 @@ def do_adjust_rollback_timeout(client):
         sys.exit("Missing timeout")
     try:
         add_timeout = int(sys.argv[3])
-    except:
+    except Exception:
         sys.exit("Invalid timeout")
 
     path = validate_path(sys.argv[2], client)

examples/python/gi/nm-wg-set

@@ -442,7 +442,7 @@ if __name__ == '__main__':
         secrets = conn.get_secrets(NM.SETTING_WIREGUARD_SETTING_NAME)
         if secrets:
             conn.update_secrets(NM.SETTING_WIREGUARD_SETTING_NAME, secrets)
-    except:
+    except Exception:
         pass
 
     if not argv: