fix(schema validation) : pydantic migratation

[regislon]

Prework

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What kind of change does this PR introduce? (check at least one)

• Bugfix
• Feature
• Code style update
• Refactor
• Build-related changes
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Does this PR introduce a breaking change? (check one)

• Yes
• No

If yes, please describe the impact and communicate accordingly:

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• It's submitted to the branch named as follow :
  • Add a reader: reader-<institute>-<campaign>
  • Fix a bug: bugfix-<some_key>-<word>
  • Improve the doc: doc-<some_key>-<word>
  • Add a new feature: feature-<some_key>-<word>
  • Refactor some code: refactor-<some_key>-<word>
  • Optimize some code: optimize-<some_key>-<word>
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Other information:

Summary

Solve the pydantic issue related to deprecated style.

[regislon]

Hi @ghiggi, all tests are passing locally. I've updated some pydantic operations to solve a deprecation issue. A+

[ghiggi]

Thanks @regislon. I merge this and I will try to update the CI tomorrow so to make all tests passing !