Fix cycle/schema-migrations-generator version

[roxblnfk]

Use latest stable cycle/schema-migrations-generator version

[codecov[bot]]

Codecov Report

Base: 79.38% // Head: 79.38% // No change to project coverage :thumbsup:

Coverage data is based on head (fe48dbe) compared to base (856eb97). Patch has no changes to coverable lines.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## 2.0 #62 +/- ## ========================================= Coverage 79.38% 79.38% Complexity 389 389 ========================================= Files 46 46 Lines 1174 1174 ========================================= Hits 932 932 Misses 242 242 ``` Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spiral). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spiral)

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