fix: enable vectorize on pytrees

[nstarman]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 57.14286% with 3 lines in your changes missing coverage. Please review.

Project coverage is 88.82%. Comparing base (3f439ad) to head (15b8ea0).
Report is 76 commits behind head on main.

Files with missing lines	Patch %	Lines
src/quaxed/numpy/_higher_order.py	57.14%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #92      +/-   ##
==========================================
- Coverage   90.20%   88.82%   -1.38%     
==========================================
  Files          18       33      +15     
  Lines         582      904     +322     
==========================================
+ Hits          525      803     +278     
- Misses         57      101      +44     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.