feat: emit admin recovery code event

[aeneasr]

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
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• I have added tests that prove my fix is effective or that my feature
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Further Comments

[zepatrik]

Maybe avoid "code" when it is used for both code and link?

Suggested change

	RecoveryCodeCreatedByAdmin semconv.Event = "RecoveryCodeCreatedByAdmin"
	RecoveryCreatedByAdmin semconv.Event = "RecoveryCreatedByAdmin"

[aeneasr]

fair point.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.59%. Comparing base (d5cfa89) to head (798ff0a).
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4230      +/-   ##
==========================================
+ Coverage   78.54%   78.59%   +0.04%     
==========================================
  Files         380      380              
  Lines       27266    27282      +16     
==========================================
+ Hits        21417    21442      +25     
+ Misses       4226     4220       -6     
+ Partials     1623     1620       -3     

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