#86dtb6tt0 - Change the usage of typing collections to use collections.abc and update the tests accordingly

[meevee98]

Summary or solution description
Refactor all usages of classes from collection.abc that were imported from typing.
Also removed all from __future__ import annotations that could be replaced by the typing.Self annotation

[melanke]

Task linked: CU-86dtb6tt0 Change the usage of typing collections to use collections.abc and update the tests accordingly

[coveralls]

coverage: 91.759% (-0.01%) from 91.773%
when pulling 8c8575f on CU-86dtb6tt0
into 44bc501 on development.

[luc10921]

Why use "{ClassName}" instead of Self on boa3/internal/model/type/classes/classtype.py and boa3/internal/model/type/itype.py?

neo3-boa/boa3/internal/model/type/classes/classtype.py

Line 19 in 8c8575f

bases: list["ClassType"] = None):

neo3-boa/boa3/internal/model/type/itype.py

Line 113 in 8c8575f

def union_type(self, other_type: "IType") -> "IType":

[meevee98]

Why use "{ClassName}" instead of Self on boa3/internal/model/type/classes/classtype.py and boa3/internal/model/type/itype.py?

neo3-boa/boa3/internal/model/type/classes/classtype.py

Line 19 in 8c8575f

bases: list["ClassType"] = None):

neo3-boa/boa3/internal/model/type/itype.py

Line 113 in 8c8575f

def union_type(self, other_type: "IType") -> "IType":

Quoting from Python typing docs:

You should not use Self as the return annotation if the method is not guaranteed to return an instance of a subclass when the class is subclassed.

That's the case on both cases above.
In the __init__ class of ClassType the base_class arg can be any subclass of ClassType, not *only* the self type.
The same for union_type class, it's not guaranteed that it will return the same type as the class is was called. (i.e.: Type.int.union_type(Type.str) won't return Type.int)
This is better described in PEP673