fix typo - UpdateUser comment

[godpeny]

I found typos that are repeatedly used in the project.
I don't think the comment is intended so open a PR :)
Please close it if it's not a big deal or intended :(

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[agilob]

The name that needs to be updated

This endpoint isn't to update username, but to update BY username. There are plenty more typos in the file btw

[godpeny]

@agilob
comment edited

[wing328]

@godpeny thanks for the PR. I've restarted the failed CI job. Let's see how that goes.