refactor: update API response for JSON deserialization errors

[kashif-m]

Type of Change

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

Description

Described in #6609

Additional Changes

• [x] 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?

Locally.

Checklist

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

[semanticdiff-com[bot]]

Review changes with  

Changed Files

| File | Status | | :--- | :--- | | [](https://app.semanticdiff.com/gh/juspay/hyperswitch/pull/6610/changes#cypress-tests-v2/cypress/e2e/configs/Payment/Commons.js)  [cypress\-tests\-v2/cypress/e2e/configs/Payment/Commons\.js](https://app.semanticdiff.com/gh/juspay/hyperswitch/pull/6610/changes#cypress-tests-v2/cypress/e2e/configs/Payment/Commons.js) | [](https://app.semanticdiff.com/gh/juspay/hyperswitch/pull/6610/changes#cypress-tests-v2/cypress/e2e/configs/Payment/Commons.js)  68% smaller | | [](https://app.semanticdiff.com/gh/juspay/hyperswitch/pull/6610/changes#cypress-tests/cypress/e2e/PaymentUtils/Commons.js)  [cypress\-tests/cypress/e2e/PaymentUtils/Commons\.js](https://app.semanticdiff.com/gh/juspay/hyperswitch/pull/6610/changes#cypress-tests/cypress/e2e/PaymentUtils/Commons.js) | [](https://app.semanticdiff.com/gh/juspay/hyperswitch/pull/6610/changes#cypress-tests/cypress/e2e/PaymentUtils/Commons.js)  68% smaller | | [](https://app.semanticdiff.com/gh/juspay/hyperswitch/pull/6610/changes#cypress-tests/cypress/e2e/PaymentUtils/Paybox.js)  [cypress\-tests/cypress/e2e/PaymentUtils/Paybox\.js](https://app.semanticdiff.com/gh/juspay/hyperswitch/pull/6610/changes#cypress-tests/cypress/e2e/PaymentUtils/Paybox.js) | [](https://app.semanticdiff.com/gh/juspay/hyperswitch/pull/6610/changes#cypress-tests/cypress/e2e/PaymentUtils/Paybox.js)  68% smaller | | [](https://app.semanticdiff.com/gh/juspay/hyperswitch/pull/6610/changes#crates/router/src/utils.rs)  [crates/router/src/utils\.rs](https://app.semanticdiff.com/gh/juspay/hyperswitch/pull/6610/changes#crates/router/src/utils.rs) | [](https://app.semanticdiff.com/gh/juspay/hyperswitch/pull/6610/changes#crates/router/src/utils.rs)  47% smaller | | [](https://app.semanticdiff.com/gh/juspay/hyperswitch/pull/6610/changes#cypress-tests-v2/cypress/e2e/configs/Payment/Utils.js)  [cypress\-tests\-v2/cypress/e2e/configs/Payment/Utils\.js](https://app.semanticdiff.com/gh/juspay/hyperswitch/pull/6610/changes#cypress-tests-v2/cypress/e2e/configs/Payment/Utils.js) | [](https://app.semanticdiff.com/gh/juspay/hyperswitch/pull/6610/changes#cypress-tests-v2/cypress/e2e/configs/Payment/Utils.js)  1% smaller | | [](https://app.semanticdiff.com/gh/juspay/hyperswitch/pull/6610/changes#cypress-tests/cypress/e2e/PaymentUtils/Utils.js)  [cypress\-tests/cypress/e2e/PaymentUtils/Utils\.js](https://app.semanticdiff.com/gh/juspay/hyperswitch/pull/6610/changes#cypress-tests/cypress/e2e/PaymentUtils/Utils.js) | [](https://app.semanticdiff.com/gh/juspay/hyperswitch/pull/6610/changes#cypress-tests/cypress/e2e/PaymentUtils/Utils.js)  1% smaller |