add type checking and switch to attrs.define

[vincentsarago]

Related Issue(s):

#828

Description:

This PR does:

• update pyproject/pre-commit configuration to run type checking
• update/fix type informations
• switch from attr.s to attrs.define for data class definition

⚠️ attrs.define adds slots to each class but in stac-fastapi we use attrs.make_class to combine multiple base classes (APIRequest + extensions). Because of slots the process will fail with TypeError: multiple bases have instance lay-out conflict in https://github.com/stac-utils/stac-fastapi/blob/main/stac_fastapi/api/stac_fastapi/api/models.py#L50-L52 . The solution to avoid this is to add slots=False for each classes 😓

FYI: switching to attrs.define made type checking happy

PR Checklist:

• pre-commit hooks pass locally
• Tests pass (run make test)
• Documentation has been updated to reflect changes, if applicable, and docs build successfully (run make docs)
• Changes are added to the CHANGELOG.