Replace usage of deprecated path for test decorators

These decorators were moved to the common module in tempest 17.0.0[1].

[1] cd36841ca25b39b9c8ad1b83e0abd0a191d538a0

Change-Id: Ic7a8ac8e98f4b56b2ae2b76071c6dc64c0f34066
1 file changed