Split tests out to speed it up a bit

api/v2/test_member.py is left untouched, it is already split
into 2 groups now [0]

[0] https://review.opendev.org/c/828963

Related-Bug: PRODX-21132
Change-Id: Ie7aa14c4d8e6578d2a61b49a1ee7ea10c071d6e6
4 files changed