feat(connector): [ADYEN, CHECKOUT] Added In Feature Matrix API

[bsayak03]

Type of Change

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

Description

Added Adyen and Checkout connectors in feature matrix api

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?

Request cURL :

curl --location 'http://localhost:8080/feature_matrix' \
--header 'Cookie: PHPSESSID=0b47db9d7de94c37b6b272087a9f2fa7'

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
crates/hyperswitch_connectors/src/connectors/checkout.rs	7% smaller
crates/hyperswitch_connectors/src/connectors/adyen.rs	1% smaller
config/config.example.toml	Unsupported file format
config/deployments/integration_test.toml	Unsupported file format
config/deployments/production.toml	Unsupported file format
config/deployments/sandbox.toml	Unsupported file format
config/development.toml	Unsupported file format
config/docker_compose.toml	Unsupported file format
loadtest/config/development.toml	Unsupported file format

[AkshayaFoiger]

add configs to /loadtest/config/development.toml