[Refactor]: [ACI] reuse utility functions from connector utils

[AkshayaFoiger]

Refactor Description

• In Hyperswitch, reusable and connector-agnostic functions used in connector integrations are added to crates/hyperswitch_connectors/src/utils.rs.

However, parts of the current ACI integration reimplement these functions instead of reusing them.

Possible Implementation

1. Review transformer.rs in the ACI connector to identify opportunities to reuse functions from crates/hyperswitch_connectors/src/utils.rs .

2. Replace the existing implementations with the corresponding reusable functions from the utils module where applicable.

Example

Current - shopper_result_url: item.router_data.request.router_return_url.clone(),
Expected - shopper_result_url: item.router_data.request.get_router_return_url().ok(),

Have you spent some time checking if this feature request has been raised before?

• I checked and didn't find a similar issue

Have you read the Contributing Guidelines?

• I have read the Contributing Guidelines

Are you willing to submit a PR?

None

[djcrafts]

I've implemented the refactoring requested in this issue. As shown in the example, I replaced direct access to router_return_url with the utility function get_router_return_url() in four places in the ACI connector's transformer.rs file.

Specifically, I made the following changes:

• Replaced item.router_data.request.router_return_url.clone() with item.router_data.request.get_router_return_url().ok()
• These changes were made in the TryFrom implementations for WalletData, BankRedirectData, PayLaterData, and MandateIds

This change improves code consistency across connectors and leverages the existing utility functions rather than reimplementing the same functionality.

The PR #7948 contains these changes.