[AIRFLOW-5235] fixes bug where kubernetes CI does not properly create user

[dimberman]

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Jira

• My PR addresses the following Airflow Jira issues and references them in the PR title. For example, "[AIRFLOW-XXX] My Airflow PR"
  • https://issues.apache.org/jira/browse/AIRFLOW-5235
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Description

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  fixes bug where kubernetes CI does not properly create user

Tests

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Commits

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  4. Subject uses the imperative mood ("add", not "adding")
  5. Body wraps at 72 characters
  6. Body explains "what" and "why", not "how"

Documentation

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Code Quality

• Passes flake8

[kaxil]

LGTM

[kaxil]

Thanks @dimberman