fix(pinia-orm): Export missing composable useSortBy

[who-jonson]

🔗 Linked issue

resolves #1881

📚 Description

Export un-exported composable useSortBy from "pinia-orm/helpers"

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 99.75%. Comparing base (417ef5c) to head (72aa283).
Report is 100 commits behind head on main.

Files with missing lines	Patch %	Lines
packages/pinia-orm/src/helpers.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1882      +/-   ##
==========================================
- Coverage   99.76%   99.75%   -0.02%     
==========================================
  Files          88       88              
  Lines        6077     6078       +1     
  Branches      515      515              
==========================================
  Hits         6063     6063              
- Misses         12       13       +1     
  Partials        2        2              

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

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.