Update kafkaloghandler to 0.9.0, which fixes a crash at 100k log messages

Change-Id: If93a1a318bef60849b12b895b2e8d71be7d1b573
diff --git a/requirements.txt b/requirements.txt
index e81de3e..a56f479 100755
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@
 jinja2==2.8
 jsonpatch==1.16
 kafka_python==1.3.5
-kafkaloghandler==0.8.0
+kafkaloghandler==0.9.0
 klein==17.10.0
 kubernetes==5.0.0
 netaddr==0.7.19