Bump CPS to 3.5.2 Snapshot

- bump CPS to 3.5.2-SNAPSHOT
- updated the release notes and prepared for the next release

Issue-ID: CPS-2318
Change-Id: I584faf6218e60ad62e32ef8c3cb0deb4047149a2
Signed-off-by: mpriyank <priyank.maheshwari@est.tech>
diff --git a/cps-ncmp-events/pom.xml b/cps-ncmp-events/pom.xml
index befae04..a15177e 100644
--- a/cps-ncmp-events/pom.xml
+++ b/cps-ncmp-events/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.onap.cps</groupId>
         <artifactId>cps-parent</artifactId>
-        <version>3.5.1-SNAPSHOT</version>
+        <version>3.5.2-SNAPSHOT</version>
         <relativePath>../cps-parent/pom.xml</relativePath>
     </parent>