fix: add sms mfa via parameter to spec

[jonas-jonas]

Related issue(s)

Checklist

• I have read the contributing guidelines.
• I have referenced an issue containing the design document if my change
  introduces a new feature.
• I am following the
  contributing code guidelines.
• I have read the security policy.
• I confirm that this pull request does not address a security
  vulnerability. If this pull request addresses a security vulnerability, I
  confirm that I got the approval (please contact
  [email protected]) from the maintainers to push
  the changes.
• I have added tests that prove my fix is effective or that my feature
  works.
• I have added or changed the documentation.

Further Comments

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (d94530a) 78.39% compared to head (2806de3) 78.37%.
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3766      +/-   ##
==========================================
- Coverage   78.39%   78.37%   -0.02%     
==========================================
  Files         347      347              
  Lines       23925    23925              
==========================================
- Hits        18756    18752       -4     
- Misses       3757     3759       +2     
- Partials     1412     1414       +2     

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