Adjusted dependencies on pydantic to the newest v1.* version

[sjohnen]

should solve #196

[djs0109]

@sjohnen Thank you for the quick implementation! As @tstorek mentioned, we will try to migrate to Pydantic V2 as soon as possible. Then this issue is also solved.

[djs0109]

@tstorek I would like first to merge this PR and make a release before the pydantic migration comes. My concern is for example, filip now cannot be used to build images because of this version issue. BTW, have you ever met this error below? It runs through in my local environment but fails in CI. It seems that the tests.semantics.models is actually ignored by git.

FAILED tests/semantics/test_semantics_models.py::TestSemanticsModels::test_4_model_relation_field_validation - AssertionError: 'RestrictionType.some (Class2 or Class4)' != 'some (Class2 or Class4)'
- RestrictionType.some (Class2 or Class4)
? ----------------
+ some (Class2 or Class4)

[djs0109]

Can be closed with the new release v0.3.0