fix: tests for multiple pydantic version and removing tests for (3.8 …

…EOL and failing due to rust also for now)

tox.ini

@@ -14,7 +14,7 @@ envlist =
     clean,
     check,
     docs,
-    {py38,py39,py310,py311,py312,pypy38,pypy39,pypy310}-{cover,nocov},
+    {py39,py310,py311,py312,pypy38,pypy39,pypy310}-{pydantic28,pydantic210}-{cover,nocov},
     report
 ignore_basepython_conflict = true
 
@@ -40,6 +40,8 @@ usedevelop =
 deps =
     pytest
     cover: pytest-cov
+    pydantic28: pydantic>=2.8,<2.9
+    pydantic210: pydantic>=2.10,<2.11
 commands =
     nocov: {posargs:pytest -vv --ignore=src}
     cover: {posargs:pytest --cov --cov-report=term-missing --cov-report=xml -vv}