Upgrade CentOS to 8.2.2004

Change-Id: I0ff1296af019c7b9c0decbe19a13e6c2a2dbfacf
diff --git a/centos/8/Dockerfile b/centos/8/Dockerfile
index cb5d744..63aa16d 100644
--- a/centos/8/Dockerfile
+++ b/centos/8/Dockerfile
@@ -1,4 +1,4 @@
-FROM centos:8.1.1911
+FROM centos:8.2.2004
 MAINTAINER Gerrit Code Review Community
 
 # Add Gerrit packages repository