feat(routing): Integrate global success rates

[Sarthak1799]

Type of Change

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

Description

Integrate global Success rates for dynamic routing

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?

1. toggle success based routing with dynamic connector selection enabled

curl --location --request POST 'http://localhost:8080/account/sarthak2/business_profile/pro_F5mC1GGXHPLTtfcBnZEP/dynamic_routing/success_based/toggle?enable=dynamic_connector_selection' \
--header 'api-key: dev_RQxKf8JqHb5tTfTp13JMnI7TyWgXIHaa2AP5VkjLtst1CRJPArSfqasfGQI1oIAQ'

2. Set volume split for dynamic routing

curl --location --request POST 'http://localhost:8080/account/sarthak2/business_profile/pro_F5mC1GGXHPLTtfcBnZEP/dynamic_routing/set_volume_split?split=80' \
--header 'api-key: dev_RQxKf8JqHb5tTfTp13JMnI7TyWgXIHaa2AP5VkjLtst1CRJPArSfqasfGQI1oIAQ'

3. Make a payment

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  

Changed Files

File	Status
crates/router/src/core/payments/routing.rs	100% smaller
crates/openapi/src/openapi.rs	13% smaller
crates/external_services/src/grpc_client/dynamic_routing/success_rate_client.rs	7% smaller
api-reference/openapi_spec.json	0% smaller
crates/api_models/src/routing.rs	0% smaller
crates/router/src/core/routing/helpers.rs	0% smaller
proto/success_rate.proto	Unsupported file format

[Chethan-rao]

should we create a new column here which stores the globally_top_performing_connector at the time this particular payment was made?
cc: @prajjwalkumar17

[Chethan-rao]

there's conflicts too. please add test cases as well