fix: incorrect swagger spec for filter parameter

[aeneasr]

Closes #3676 #3675

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

All modified and coverable lines are covered by tests ✅

Comparison is base (a2f79c3) 78.31% compared to head (c2760d4) 78.31%.
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3684   +/-   ##
=======================================
  Coverage   78.31%   78.31%           
=======================================
  Files         346      346           
  Lines       23551    23551           
=======================================
  Hits        18444    18444           
+ Misses       3713     3712    -1     
- Partials     1394     1395    +1     

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