feat(contract-testing): explore and implement contract testing

[abhisheksr01]

Description

Explore the aspects of contract testing and Implement them in this repository. Identify the use cases, pros and cons.

Use Case

Testing in the API Contracts for the GET companieshouse/search/{crn} API in this repository.

Proposed Solution

Explore the aspects of contract testing and Implement them in this repository. Identify the use cases, pros and cons.
Update the documentation.

Benefits

To be documented after exploring the contract testing.

Example

Additional Information

• https://spring.io/guides/gs/contract-rest
• https://blog.iterative.engineering/2022/08/08/contract-testing-with-spring/
• https://www.baeldung.com/pact-junit-consumer-driven-contracts