Update pydantic to 2.4 and fix issues from changes

- fix bugs introduced by utilizing internal implementation details of pydantic
- migrate pydantic validator field param to info

.github/workflows/test.yaml

@@ -29,4 +29,4 @@ jobs:
     - name: Install dependencies
       run: poetry install
     - name: Run pytest
-      run: poetry run pytest
+      run: poetry run pytest

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "statesman"
-version = "1.0.4"
+version = "1.0.5"
 description = "A modern state machine library."
 authors = ["Blake Watters <[email protected]>"]
 license = "Apache-2.0"
@@ -10,7 +10,7 @@ repository = "https://github.com/opsani/statesman"
 
 [tool.poetry.dependencies]
 python = ">=3.8,<3.13"
-pydantic = "^1.7.1"
+pydantic = "^2.4"
 
 [tool.poetry.dev-dependencies]
 pytest = "^7.2.0"
@@ -66,4 +66,4 @@ mccabe = ["+*"]
 [tool.flakehell.exceptions."statesman_test.py"]
 pycodestyle = ["-*"]
 pyflakes = ["-*"]
-flake8-docstrings = ["-*"]
+flake8-docstrings = ["-*"]