Checkout-sdk

- Adds support for Financial Actions API
- Added SEPAV4 sources

* Added support for Dispute Scheme Files API (CS1/CS2)
* Renames created workflows in tests to add SDK identifier (CS1/CS2)
* Added support for Reconciliation (CS1)
* Added API key auth to Integrated Platforms Balances (CS2)
* Added support for Trustly & Cv Connect APM (CS2)
* Review payment & payout request schema (CS1/CS2)
* Added patch endpoint for payment instruments (CS2)
* Update Sepa URL for PPro actions (CS1)
* Replace ‘reporting’ scopes with 'reports' on the Reports API (CS2)
* Add new Illicado APM (CS2)

* Added new Integrated Platforms payment instrument endpoints to Accounts (CS2)
* Fix CI for Python 3.6 as reached EOL which is no longer supported for new versions
* Added mandatory fields for MIT/CIT payments sources (CS1/CS2)
* Restore `first_name` and `country` fields from PaymentRecipient schema
* Support Secret Key for `Accounts` & `Transfers` (CS2)
* Deprecated `Risk` client (CS1/CS2)

* Added support for Payments Query.
* Added support for Reports API (default).

* Added `upgrade_reason` to 3DS request and response.
* Removed payment_type: `unscheduled`
* Added `email_addresses` to ContactDetails (default).
* Added support for Customer Source (default).

* Added Support for ALMA source (CS2)
* Added Support for One Klarna source (CS2)
* Added Support for Fawry source (CS2)
* Added missing fields for PayPal source (CS2)
* Added missing fields for Sofort source (CS2)
* Added missing fields for ID source (CS2)
* Added scheme to all Session sources (CS2)