Fix commands for Centrifugo 4

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 99.84%. Comparing base (c6e968d) to head (9a82b9a). Report is 1 commits behind head on 4.x.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## 4.x #37 +/- ## ============================================= - Coverage 100.00% 99.84% -0.16% + Complexity 403 401 -2 ============================================= Files 71 70 -1 Lines 1308 1295 -13 ============================================= - Hits 1308 1293 -15 - Misses 0 2 +2 ```

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