Use policy-apex-pdp snapshot image from Nexus

Change-Id: Iad813aa2ce160674273156b4bfffa3a3df5406b0
Issue-ID: NONRTRIC-533
Signed-off-by: RehanRaza <muhammad.rehan.raza@est.tech>
diff --git a/docker-compose/docker-compose-policy-framework/docker-compose.yml b/docker-compose/docker-compose-policy-framework/docker-compose.yml
index 9a4557b..d4d0dc8 100644
--- a/docker-compose/docker-compose-policy-framework/docker-compose.yml
+++ b/docker-compose/docker-compose-policy-framework/docker-compose.yml
@@ -141,7 +141,7 @@
         'pap', '6969'
         ]
    apex-pdp:
-      image: onap/policy-apex-pdp:latest
+      image: nexus3.onap.org:10003/onap/policy-apex-pdp:latest
       container_name: policy-apex-pdp
       depends_on:
        - mariadb