stage a release candidate for 2.1.20

Issue-ID: AAF-1124
Signed-off-by: John J. Franey <john.franey@att.com>
Change-Id: Ic4eb1e777946c9a009759684eb807287634c8050
diff --git a/pom.xml b/pom.xml
index f3ee5c1..93b37d5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -22,7 +22,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.onap.aaf.authz</groupId>
     <artifactId>parent</artifactId>
-    <version>2.1.20-SNAPSHOT</version>
+    <version>2.1.20</version>
     <name>aaf-authz</name>
     <packaging>pom</packaging>