fix(dispute): change dispute currency type to currency enum

[ImSagnik007]

Type of Change

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

Description

Changed Dispute Currency from String to ENUM.

Additional Changes

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

Motivation and Context

How did you test it?

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

[semanticdiff-com]

Review changes with SemanticDiff.

Analyzed 21 of 23 files.

Overall, the semantic diff is 3% smaller than the GitHub diff.

File Information

	Filename	Status
❔	migrations/2024-10-28-125949_change_currency_type_in_dispute/down.sql	Unsupported file format
❔	migrations/2024-10-28-125949_change_currency_type_in_dispute/up.sql	Unsupported file format
✔️	crates/router/src/types/storage/dispute.rs	30.63% smaller
✔️	crates/router/src/services/kafka/dispute.rs	Analyzed
✔️	crates/router/src/services/kafka/dispute_event.rs	Analyzed
✔️	crates/router/src/db/dispute.rs	37.49% smaller
✔️	crates/router/src/connector/adyen.rs	Analyzed
✔️	crates/router/src/connector/airwallex.rs	Analyzed
✔️	crates/router/src/connector/bluesnap.rs	Analyzed
✔️	crates/router/src/connector/braintree.rs	Analyzed
✔️	crates/router/src/connector/checkout.rs	Analyzed
✔️	crates/router/src/connector/payme.rs	Analyzed
✔️	crates/router/src/connector/paypal.rs	Analyzed
✔️	crates/router/src/connector/rapyd.rs	Analyzed
✔️	crates/router/src/connector/stripe.rs	Analyzed
✔️	crates/router/src/connector/trustpay.rs	Analyzed
✔️	crates/router/src/connector/utils.rs	Analyzed
✔️	crates/router/src/compatibility/stripe/webhooks.rs	2.64% smaller
✔️	crates/hyperswitch_interfaces/src/disputes.rs	Analyzed
✔️	crates/diesel_models/src/dispute.rs	Analyzed
✔️	crates/diesel_models/src/schema.rs	49.14% smaller
✔️	crates/diesel_models/src/schema_v2.rs	49.14% smaller
✔️	crates/api_models/src/disputes.rs	Analyzed