change cherrypy version to 18.1.2

Change-Id: Id9a2e516e253ccf174d2ac7849178da7bdac0576
Signed-off-by: tierno <alfonso.tiernosepulveda@telefonica.com>
diff --git a/setup.py b/setup.py
index 8946575..ad7cdd5 100644
--- a/setup.py
+++ b/setup.py
@@ -52,7 +52,7 @@
         'git+https://osm.etsi.org/gerrit/osm/common.git#egg=osm-common'
     ],
     install_requires=[
-        'CherryPy==18.0.0',
+        'CherryPy==18.1.2',
         'osm-common',
         'jsonschema',
         'PyYAML',