ValidationError when using imagePullPolicy

[andef]

Hi, just started using hera and it is pretty cool! But, I am having an issue with imagePullPolicy.
I am using version 5.1.3

Sample code:

from hera.workflows import Workflow, script


@script(image_pull_policy="Always")
def pull():
    pass


with Workflow(generate_name="pull-", namespace="argo") as w:
    pull()
w.create()

Error output:

Traceback (most recent call last):
  File "/home/.../demo.py", line 11, in <module>
    w.create()
  File "/home/.../lib/python3.10/site-packages/hera/workflows/workflow.py", line 335, in create
    WorkflowCreateRequest(workflow=self.build()), namespace=self.namespace
  File "/home/.../lib/python3.10/site-packages/hera/workflows/workflow.py", line 212, in build
    templates.append(template._build_template())
  File "/home/.../lib/python3.10/site-packages/hera/workflows/script.py", line 172, in _build_template
    script=self._build_script(),
  File "/home/.../lib/python3.10/site-packages/hera/workflows/script.py", line 187, in _build_script
    _ModelScriptTemplate(
  File "pydantic/main.py", line 341, in pydantic.main.BaseModel.__init__
pydantic.error_wrappers.ValidationError: 1 validation error for ScriptTemplate
imagePullPolicy
  str type expected (type=type_error.str)

[sergiynesterenko90]

Seeing the same - also 5.1.3