Update hp3parclient low version number

This is the 2nd patch that upgrades the hp3parclient
to requiring the new 3.0.0 version for unit tests.

Change-Id: Ie78b03499b6ba53e75716ff1d4159424a7a82fae
Sync requirements to oslo.test

bp graduate-oslo-test

Change-Id: Ib376f3ef8bd44f0285fd3e1a1f4b14aa0ad1018a
Merge "Update hp3parclient low version number"