Do not crash on missing token

upload.py

@@ -99,13 +99,8 @@ def _fetch_api_token(session):
                 # api_token: "xoxs-12345-abcdefg....",
                 # "api_token":"xoxs-12345-abcdefg....",
                 match_group = API_TOKEN_PATTERN.match(line.strip())
-                if not match_group:
-                    raise ParseError(
-                        "Could not parse API token from remote data! "
-                        "Regex requires updating."
-                    )
-
-                return match_group.group(1)
+                if match_group:
+                    return match_group.group(1)
 
     print("No api_token found in page. Search your https://<teamname>.slack.com/customize/emoji "
           "page source for \"api_token\" and enter its value manually.")