Bump CPS to 3.4.6-SNAPSHOT

- bumping CPS to 3.4.6-SNAPSHOT
- updated the release notes

Issue-ID: CPS-2124
Change-Id: Id28af9340da9c1ce118b2122e97b8717860c7932
Signed-off-by: mpriyank <priyank.maheshwari@est.tech>
diff --git a/checkstyle/pom.xml b/checkstyle/pom.xml
index f794dc2..2676dcb 100644
--- a/checkstyle/pom.xml
+++ b/checkstyle/pom.xml
@@ -26,7 +26,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.onap.cps</groupId>
     <artifactId>checkstyle</artifactId>
-    <version>3.4.5-SNAPSHOT</version>
+    <version>3.4.6-SNAPSHOT</version>
 
     <profiles>
         <profile>