Python 3.8 in logging-analytics-pylog CI tests

Issue-ID: LOG-1233
Signed-off-by: Michal Jagiello <michal.jagiello@t-mobile.pl>
Change-Id: I97ebd701dcec87282c24769c574d8464aa3a82f2
diff --git a/jjb/logging-analytics/logging-analytics.yaml b/jjb/logging-analytics/logging-analytics.yaml
index 8b6c391..7ef2950 100644
--- a/jjb/logging-analytics/logging-analytics.yaml
+++ b/jjb/logging-analytics/logging-analytics.yaml
@@ -81,7 +81,7 @@
     stream:
       - 'master':
           branch: 'master'
-    build-node: centos7-builder-4c-4g
+    build-node: ubuntu1804-builder-4c-4g
     mvn-settings: 'logging-analytics-settings'
     subproject:
       - 'pylog':