Merge branch 'renovate/patch-all-minor-patch' into 'master'

Update gerritcodereview/gerrit Docker tag to v3.4.8

See merge request mulk/kubeia!5
diff --git a/gerrit/Dockerfile b/gerrit/Dockerfile
index 943aa5f..82dc6f2 100644
--- a/gerrit/Dockerfile
+++ b/gerrit/Dockerfile
@@ -1,4 +1,4 @@
-FROM gerritcodereview/gerrit:3.4.1
+FROM gerritcodereview/gerrit:3.4.8
 
 USER root