fix(aiokafka): version now fixed to 0.6.0 (this is the latest at the moment)

Change-Id: If9477995e41497aa3171266efa1c5d88976f1cc3
Signed-off-by: bravof <fbravo@whitestack.com>
(cherry picked from commit 8ba99ff372d2d8ef13b2c6865b16c0869fa04069)
diff --git a/requirements.txt b/requirements.txt
index f790707..601558f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,26 @@
-aiokafka==0.5.*
+# Copyright 2020 Whitestack, LLC
+# *************************************************************
+
+# This file is part of OSM Monitoring module
+# All Rights Reserved to Whitestack, LLC
+
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+
+#         http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: fbravo@whitestack.com or glavado@whitestack.com
+##
+
+aiokafka==0.6.0
 peewee==3.8.*
 jsonschema==2.6.*
 pyyaml==3.*