Please review **e2e.py and test_suite belonging to your team**!
This is the first part of https://docs.google.com/document/d/16IrwerYi2oJugnRf5hvzukgpJ6FAVEpB6stH_CiNMjY/edit#
This PR adds a team name to each test suite.
If the name is not specified, it will be reported as unspecified.
If you are running a local test, and if the new test suite doesn't have a team name specified, it will raise an exception (in this way, we can avoid missing team names in the future).
Note that we will aggregate all of test config into a single file, nightly_test.yaml.
* [xgboost/release] Add GPU connect user test
* Use scaling cluster
* typo
* Increase xgboost placement group timeout
* Much higher timeout
* Move os environment timeout
* Move os environ
* [dev] install xgboost-ray from master
* GPU xgboost master
* Remove master install after new xgboost release
* Install latest
* Add master test
