Fix bug 2268 to use previous GCP libraries that do not present the connection issues

Change-Id: I3fec15cddb795fe21f15ca58195bb11283024d26
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 9bbe0e8..9f8bd6d 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -22,6 +22,10 @@
     #   aiokafka
 dataclasses==0.6
     # via -r https://osm.etsi.org/gitweb/?p=osm/common.git;a=blob_plain;f=requirements.txt;hb=master
+dnspython==2.3.0
+    # via
+    #   -r https://osm.etsi.org/gitweb/?p=osm/common.git;a=blob_plain;f=requirements.txt;hb=master
+    #   pymongo
 kafka-python==2.0.2
     # via
     #   -r https://osm.etsi.org/gitweb/?p=osm/common.git;a=blob_plain;f=requirements.txt;hb=master