Ensure generated files are up-to-date in the pipeline

[pleshakov]

Is your enhancement request related to a problem? Please describe.
If we forget to regenerate fakes (make generate), the out-of-date code can be commited to the main branch. See an example of a problem -- #784

What would you like to be added:
Catch such problems in GitHub pipeline.

Why this is needed:
Catch such problems in GitHub pipeline.

Additional context