feat(core): Adds Billing Connector Invoice Sync flow in Revenue Recovery

[NISHANTH1221]

Type of Change

• Bugfix
• New feature
• Enhancement
• Refactoring
• Dependency updates
• Documentation
• CI/CD

Description

This PR adds billing connector invoice sync flow to revenue recovery. This is used to fetch invoice details from billing connectors. There is some invoice related information which are needed for revenue recovery system but our current flow is not enough for it. This PR just adds BIllingConnectorInvoiceSync Flow to RevenueRecovery.

Additional Changes

• This PR modifies the API contract
• This PR modifies the database schema
• This PR modifies application configuration/environment variables

Motivation and Context

For Revenue Recovery Transaction Monitoring : In case of Recurly a billing connector, we need details such as retry_count which we wont get this through BillingConnectorPaymentSyncCall or webhook. To accommodate such things we need Invoice sync flow.

How did you test it?

No testing needed since this is just a definition of flow

Checklist

• I formatted the code cargo +nightly fmt --all
• I addressed lints thrown by cargo clippy
• I reviewed the submitted code
• I added unit tests for my changes where possible

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Changed Files

File	Status
crates/router/src/types.rs	90% smaller
crates/router/src/types/api.rs	86% smaller
crates/hyperswitch_domain_models/src/types.rs	58% smaller
crates/hyperswitch_interfaces/src/api/revenue_recovery.rs	54% smaller
crates/hyperswitch_interfaces/src/api/revenue_recovery_v2.rs	54% smaller
crates/hyperswitch_connectors/src/default_implementations_v2.rs	54% smaller
crates/hyperswitch_interfaces/src/types.rs	48% smaller
crates/router/src/core/payments/flows.rs	1% smaller
crates/hyperswitch_connectors/src/default_implementations.rs	0% smaller
crates/hyperswitch_domain_models/src/router_data_v2/flow_common_types.rs	0% smaller
crates/hyperswitch_domain_models/src/router_flow_types/revenue_recovery.rs	0% smaller
crates/hyperswitch_domain_models/src/router_request_types/revenue_recovery.rs	0% smaller
crates/hyperswitch_domain_models/src/router_response_types/revenue_recovery.rs	0% smaller
crates/router/src/services/api.rs	0% smaller