docs(contribute): update compatible Python versions in local environment setup instructions (#20260)
docs(contribute): update compatible Python versions in local environment setup instructions (#20260)

* Remove incompatible Python 3.7 from local env setup docs

* Ensure Python 3.8 or 3.9

Co-authored-by: Diego Martin <0f4380f76dabf3fa72aa79ec4055b51b4f73535f@indigitall.com>
airbnb/caravel,zhouyao1994/incubator-superset,zhouyao1994/incubator-superset,zhouyao1994/incubator-superset,zhouyao1994/incubator-superset,airbnb/caravel,zhouyao1994/incubator-superset,airbnb/caravel,airbnb/caravel