This update incorporates the National Bank of Kazakhstan as a currency rate provider. This change fulfills regulatory requirements specific to Kazakhstan, ensuring accurate currency conversions for users in that region. It improves the system's compliance and functionality within the Kazakhstan market.

This PR adds the National Bank of Kazakhstan as a provider in order to meet the requirements of the Kazakhstan code.

Task-4144725

Forward-Port-Of: odoo/enterprise#107797

This update incorporates essential testing for the Stripe expense module within Odoo Enterprise. Previously missing, these tests ensure the module functions correctly and reliably, addressing a gap in the original development task. This improves the stability and quality of the expense reporting process.

Add tests for the module, as it wasn't included in the original task

Forward-Port-Of: odoo/enterprise#107969
Forward-Port-Of: odoo/enterprise#106191