fix: missing data in JWT grant

[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 green light (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

❗ No coverage uploaded for pull request base (v2.x@6644e8b). Click here to learn what that means.
The diff coverage is n/a.

❗ Current head 681e143 differs from pull request most recent head 3637579. Consider uploading reports for the commit 3637579 to get more accurate results

@@           Coverage Diff           @@
##             v2.x    #3143   +/-   ##
=======================================
  Coverage        ?   79.11%           
=======================================
  Files           ?      114           
  Lines           ?     8486           
  Branches        ?        0           
=======================================
  Hits            ?     6714           
  Misses          ?     1382           
  Partials        ?      390           

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