[COREP-5309] update CHANGELOG.md version

Author: pprzemek-alta

CHANGELOG.md

@@ -2,7 +2,7 @@
 All notable changes to this project will be documented in this file.
 
 ## [3.1.9]
-- Updated `APIResponse.xsd` to include `DeviceId`, replaced  `DeviceInfo` and `GeolocationInfo` in `CustomerInfo` with `DeviceId` retrieved from `BrowserData`
+- Updated `APIResponse.xsd` to include `DeviceId`, replaced  `DeviceInfo` and `GeolocationInfo` in `CustomerInfo` with `DeviceId`
 
 ## [3.1.8]
 - Updated `APIResponse.xsd` to include `DeviceInfo` and `GeolocationInfo`