Add github_cli to loaded utility functions

Author: woojiahao

app/utils/gitmastery.py

@@ -209,7 +209,7 @@ def hands_on_exists(hands_on: str, timeout: int = 5) -> bool:
 # We hardcode this list because to fetch it dynamically requires a Github API call
 # which we only have 60/hour so it's unwise to do it
 # TODO(woojiahao): Find a better way around this
-EXERCISE_UTILS_FILES = ["__init__", "cli", "git", "file", "gitmastery"]
+EXERCISE_UTILS_FILES = ["__init__", "cli", "git", "file", "gitmastery", "github_cli"]
 
 
 def execute_py_file_function_from_url(