Update requirements-dev to point to branch and refresh updates

Change-Id: I5ec6c8e45026ab77feeb0b1c05c34ecd8a7a84d7
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/requirements-dev.in b/requirements-dev.in
index b6a02f4..54c4483 100644
--- a/requirements-dev.in
+++ b/requirements-dev.in
@@ -13,5 +13,5 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-git+https://osm.etsi.org/gerrit/osm/osmclient.git@master#egg=osmclient
+git+https://osm.etsi.org/gerrit/osm/osmclient.git@v14.0#egg=osmclient
 -r https://osm.etsi.org/gitweb/?p=osm/osmclient.git;a=blob_plain;f=requirements.txt;hb=master