Update CHANGELOG.md

remove trailing spaces

Author: ArturT

CHANGELOG.md

@@ -792,7 +792,7 @@ https://github.com/KnapsackPro/knapsack_pro-ruby/compare/v3.3.0...v3.3.1
 
 ### 3.3.0
 
-* Show a JSON report file content when RSpec fails during a dry run 
+* Show a JSON report file content when RSpec fails during a dry run
 
     https://github.com/KnapsackPro/knapsack_pro-ruby/pull/172
 
@@ -873,7 +873,7 @@ https://github.com/KnapsackPro/knapsack_pro-ruby/compare/v2.18.0...v2.18.1
 
 ### 2.18.0
 
-* Do not allow to use the RSpec tag option together with the RSpec split by test examples feature in knapsack_pro gem in Regular Mode 
+* Do not allow to use the RSpec tag option together with the RSpec split by test examples feature in knapsack_pro gem in Regular Mode
 
     https://github.com/KnapsackPro/knapsack_pro-ruby/pull/148