Update CHANGELOG.md

Author: sobolevn

CHANGELOG.md

@@ -16,18 +16,18 @@ Semantic versioning in our case means:
   But, in the future we might change the configuration names/logic,
   change the client facing API, change code conventions significantly, etc.
 
+
 ## 1.2.0 WIP
 
 ### Features
 
 - Adds `WPS478`: forbids using non strict slice operations, #1011
 
-## 1.1.1
-
 ### Bugfixes
 
 - Fixes `WPS115` false-positive on `StrEnum`, `IntEnum`, `IntFlag` attributes, #3381
 
+
 ## 1.1.0
 
 ### Command line utility