chore: cleanup test

[CaptainStandby]

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

Merging #2964 (d0f1094) into master (b407aa9) will decrease coverage by 0.02%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2964      +/-   ##
==========================================
- Coverage   76.16%   76.14%   -0.03%     
==========================================
  Files         309      309              
  Lines       19046    19046              
==========================================
- Hits        14507    14503       -4     
- Misses       3414     3417       +3     
- Partials     1125     1126       +1     

Impacted Files	Coverage Δ
session/test/persistence.go	99.06% <0.00%> (-0.94%)	⬇️

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[CaptainStandby]

@aeneasr I missed one thing last night --> #2965