UAT `test-count_patients_with_event.R` error

```
  Error (test-count_patients_with_event.R:240:3): count_patients_with_flags works with label row specified
  Error: name %in% avail$Name is not TRUE
  Backtrace:
   1. scda::synthetic_cdisc_data("rcd_2021_07_07") test-count_patients_with_event.R:240:2
   2. base::stopifnot(length(name) == 1, name %in% avail$Name)
 ```


# todo 

- Please use `rcd_2022_02_28` version
- Fix the test

