2021.2

• allow multiple processor dependencies to make it easier to control the processor dependencies, for example to update to the latest core version with bugfixes or new features, e.g.:

  // ...
  spring {
     processor 'io.openapiprocessor:openapi-processor-core:2021.3-SNAPSHOT'
     processor 'io.openapiprocessor:openapi-processor-spring:2021.1'
  
     // ...
  }

• run integration test with all gradle versions from 5.5 to 6.8.3 & 7.0 (7.0-20210306...)