fix: use correct post-verification identity state in post-hooks

[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
  vulnerability. If this pull request addresses a security vulnerability, I
  confirm that I got the approval (please contact
  security@ory.sh) 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

Attention: Patch coverage is 20.00000% with 8 lines in your changes are missing coverage. Please review.

Project coverage is 78.01%. Comparing base (800f8f1) to head (0ca0913).
Report is 1 commits behind head on master.

Files	Patch %	Lines
selfservice/strategy/code/strategy_verification.go	20.00%	2 Missing and 2 partials ⚠️
selfservice/strategy/link/strategy_verification.go	20.00%	2 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3863      +/-   ##
==========================================
- Coverage   78.04%   78.01%   -0.04%     
==========================================
  Files         360      360              
  Lines       25233    25233              
==========================================
- Hits        19694    19686       -8     
- Misses       4033     4040       +7     
- Partials     1506     1507       +1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.