Remove support for array of strings when defining services for Docker Executor
What does this MR do?
Removes deprecated support for array of strings when defining services for Docker Executor.
Why was this MR needed?
See #4922 (closed)
Are there points in the code the reviewer needs to double check?
Does this MR meet the acceptance criteria?
-
Documentation created/updated -
Added tests for this feature/bug -
In case of conflicts with master
- branch was rebased
What are the relevant issue numbers?
Closes #4922 (closed)