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>
25 files changed