add inspect_dag_group_run.py

import sys

import os

dag_group_run_hash = sys.argv[1]

assert len(dag_group_run_hash) == 40

import joblib

file_path = os.path.join(

    os.getenv("HOME"),

    "csst_dag",

    f"{dag_group_run_hash}.joblib",

)

data = joblib.load(file_path)

dag_group_run = data["dag_group_run"]

dag_run_list = data["dag_run_list"]

# print dag_group_run and dag_run_list

print("`dag_group_run`:")

print(f"  - {dag_group_run}")

for dag_run in dag_run_list:

    print(f"  - {dag_run}")