Bump CPS to 3.4.7-SNAPSHOT

- bump cps to 3.4.7-snapshot
- updated the relese notes

Issue-ID: CPS-2135
Change-Id: Ib166ebae2e3de9a727b3d0d4d21832c8858f4108
Signed-off-by: mpriyank <priyank.maheshwari@est.tech>
diff --git a/cps-events/pom.xml b/cps-events/pom.xml
index ec62b62..fd75c2c 100644
--- a/cps-events/pom.xml
+++ b/cps-events/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.onap.cps</groupId>
         <artifactId>cps-parent</artifactId>
-        <version>3.4.6-SNAPSHOT</version>
+        <version>3.4.7-SNAPSHOT</version>
         <relativePath>../cps-parent/pom.xml</relativePath>
     </parent>