(task): update the preference API to handle generic interfaces for valueType

[shivanshuraj1333]

Related to: #6815
We want to support user based pins for third party api monitoring using preference API.

[vikrantgupta25]

• Update the preference API to accept generic interface{} for the value type, allowed values should also follow the same
• We need to think about how to validate the generic types with the provided allowed values as well
• Allow to not have any check in place for certain values. like bypass the allowedValues and range checks as well
• Updates should not end up making the preference store a property bag without any validations in place.