⚡ [#4695] Do not fetch all IOtypen for objects API validation

[stevenbal]

Closes #4695

Changes

• Do not fetch all IOtypen for objects API validation

Checklist

Check off the items that are completed or not relevant.

• Impact on features

  • Checked copying a form
  • Checked import/export of a form
  • Config checks in the configuration overview admin page
  • Problem detection in the admin email digest is handled

• Release management

  • I have labelled the PR as "needs-backport" accordingly

• I have updated the translations assets (you do NOT need to provide translations)

  • Ran ./bin/makemessages_js.sh
  • Ran ./bin/compilemessages_js.sh

• Commit hygiene

  • Commit messages refer to the relevant Github issue
  • Commit messages explain the "why" of change, not the how

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.56%. Comparing base (70771b7) to head (c5a3716).
Report is 12 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #4700   +/-   ##
=======================================
  Coverage   96.56%   96.56%           
=======================================
  Files         746      746           
  Lines       25164    25174   +10     
  Branches     3307     3310    +3     
=======================================
+ Hits        24299    24309   +10     
  Misses        601      601           
  Partials      264      264           

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[stevenbal]

2.7.x backport: #4705 (could not cherry pick, because the validation was slightly different in that branch)

[sergei-maertens]

Nice, thank you!

[sergei-maertens]

Backports:

• 2.8.x: 58e7047
• 2.7.x via ⚡ [#4695] Do not fetch all IOtypen for objects API validation (2.7.x backport) #4705