Fix for link length migration

[SchrodingersGat]

• Found some fields which had not been migrated correctly
• Follow up to increase character limits on all link fields to 2000 #9131

[netlify]

✅ Deploy Preview for inventree-web-pui-preview canceled.

Name	Link
🔨 Latest commit	73ed8ee
🔍 Latest deploy log	https://app.netlify.com/sites/inventree-web-pui-preview/deploys/67c92a82240fab00089c8095

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.71%. Comparing base (8e753b3) to head (73ed8ee).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #9249   +/-   ##
=======================================
  Coverage   84.70%   84.71%           
=======================================
  Files        1198     1198           
  Lines       52561    52561           
  Branches     2216     2216           
=======================================
+ Hits        44522    44525    +3     
+ Misses       7483     7480    -3     
  Partials      556      556           

Flag	Coverage Δ
backend	88.08% <ø> (+<0.01%)	⬆️

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