Bump Gerrit version to 3.2.3

Change-Id: I18279d1f73f05bdfbb072f8939ee66e6a501c96b
diff --git a/common.env b/common.env
index c5bcc9b..13860af 100644
--- a/common.env
+++ b/common.env
@@ -5,7 +5,7 @@
 
 # Gerrit version
 GERRIT_VERSION=3.2
-GERRIT_PATCH=2
+GERRIT_PATCH=3
 GERRIT_BRANCH=stable-$(GERRIT_VERSION)
 # Gerrit CI
 GERRIT_CI=https://gerrit-ci.gerritforge.com/view/Plugins-$(GERRIT_BRANCH)/job