fix: Return the updated identity as described in the API spec

[borisroman]

Related issue(s)

Fixes #3346

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 #3347 (0e95ace) into master (adf78e0) will not change coverage.
The diff coverage is n/a.

❗ Current head 0e95ace differs from pull request most recent head 8af257e. Consider uploading reports for the commit 8af257e to get more accurate results

@@           Coverage Diff           @@
##           master    #3347   +/-   ##
=======================================
  Coverage   78.04%   78.04%           
=======================================
  Files         324      324           
  Lines       21025    21025           
=======================================
  Hits        16410    16410           
  Misses       3385     3385           
  Partials     1230     1230           

Impacted Files	Coverage Δ
identity/handler.go	86.20% <ø> (ø)

[aeneasr]

Thank you! Could you please instead change https://github.com/ory/kratos/pull/3347/files#diff-461d37b91ce0b27e82db7c21166a58a7f8bea1446854e488822f8b79ad95a4e6R904 to

204: emptyResponse

Thank you! :)

[borisroman]

@aeneasr Changed the commit to reflect the requested changes.

Thanks again for the quick response.

[aeneasr]

Awesome, thank you! 🎉 Your contribution makes Ory better :)