Merge branch 'fix-user-activity-api' into 'master'

Fix user activities API version in docs

[ci skip]

See merge request !10822

doc/api/users.md

@@ -1017,7 +1017,7 @@ Parameters:
 | `from` | string | no | Date string in the format YEAR-MONTH-DAY, e.g. `2016-03-11`. Defaults to 6 months ago. |
 
 ```bash
-curl --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v3/user/activities
+curl --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/user/activities
 ```
 
 Example response: