Omegaconf breaks with a custom resolver providing a datetime

[PetitLepton]

Description

Omegaconf raises an exception on versions 0.19.* when a custom resolver providing a datetime object (or timedelta for example).

Context

I was trying to use custom resolvers to parse to datetime and timedelta.

Steps to Reproduce

https://github.com/PetitLepton/kedro-runtime-params

Expected Result

Custom resolvers with any output should work.

Actual Result

omegaconf.errors.UnsupportedValueType: Value 'timedelta' is not a supported primitive type
    full_key: example-duration
    object_type=dict

Your Environment

• Kedro version used (pip show kedro or kedro -V): > 0.18.*
• Python version used (python -V): 3.11.*
• Operating system and version: Ubuntu 20.04

[ElenaKhaustova]

Thank you, @PetitLepton, for opening the issue!

[ElenaKhaustova]

Additional context

Relates to #3620

User tested the code example provided with 0.18.14 and 0.19.8 kedro versions - the issue appears only when switching to 0.19.x. OmegaConf version used in both tests was the same - 2.3.0.

[noklam]

Duplicated as #3620, we will fix this in the other issue