Update CHANGELOG.rst
Update CHANGELOG.rst

Co-authored-by: Eugen C. <67cac084fbaf94f499d5252e3cb50165dbf6e026@armab.io>
Plexxi/st2,nzlosh/st2,StackStorm/st2,StackStorm/st2,Plexxi/st2,nzlosh/st2,Plexxi/st2,Plexxi/st2,StackStorm/st2,nzlosh/st2,nzlosh/st2,StackStorm/st2