bump patch version (again)

I forgot to bump the patch version for the clang-format release awhile ago and now I want to make a new release so that I can re-publish the website with the seminar slides. I don't want to break the last tag which is being held in ldmx-sw right now, so here we are.

CMakeLists.txt

@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.12)
 
 project(G4DarkBreM
-  VERSION 2.0.1
+  VERSION 2.0.2
   DESCRIPTION "Dark brem simulation integrated within Geant4"
   LANGUAGES CXX)