Fix/add schema validation error report

[noctillion]

Adds helper to format schema validation error into a readable info

[codecov]

Codecov Report

❌ Patch coverage is 94.73684% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 94.36%. Comparing base (854480e) to head (d0d07ab).
⚠️ Report is 3 commits behind head on develop.

Files with missing lines	Patch %	Lines
chord_metadata_service/chord/ingest/experiments.py	85.71%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #646      +/-   ##
===========================================
- Coverage    94.36%   94.36%   -0.01%     
===========================================
  Files          135      135              
  Lines         5292     5307      +15     
  Branches       496      498       +2     
===========================================
+ Hits          4994     5008      +14     
- Misses         209      210       +1     
  Partials        89       89              

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