fix: identity list pagination

[aeneasr]

Resolves a pesky issue that would skip the last page.

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 #3325 (fe48534) into master (3485204) will decrease coverage by 0.08%.
The diff coverage is 100.00%.

❗ Current head fe48534 differs from pull request most recent head 9ea1e64. Consider uploading reports for the commit 9ea1e64 to get more accurate results

@@            Coverage Diff             @@
##           master    #3325      +/-   ##
==========================================
- Coverage   78.20%   78.12%   -0.08%     
==========================================
  Files         325      325              
  Lines       21079    21079              
==========================================
- Hits        16484    16468      -16     
- Misses       3370     3383      +13     
- Partials     1225     1228       +3     

Impacted Files	Coverage Δ
persistence/sql/identity/persister_identity.go	80.03% <100.00%> (ø)

... and 2 files with indirect coverage changes