Updated openstack/openstack
Project: openstack/requirements  42a5a89b808d5bb517b5163e8d812e2e62738402

Bump oslotest version

Latest oslotest releases automatically stop mock patches in tearDown().
This allows project that are using the library to get rid of lots of
redundant patch.stop() calls.

Bumping the version of the module to facilitate usage of the feature in
unit tests.

Related-Bug: 1323214
Change-Id: I58e32630b1b43a027a775cbf2a338bf928b4a71b