Using Spring Cloud Contract as an alternative for Integration Tests

So, you have become the happy owners of Microservice Architecture. The next challenge is to control quality in the face of rapid code development and low resources. What if we do not have automated End-To-End tests, and there is no way to start a new environment for testing feature branches?

Let's consider Contract Tests as a possible alternative to Integration Testing using the example of Spring Cloud Contract and discuss the pros and cons of this solution.