* #285 build and test only changed packages
* changed since flag param
* fix build cause --since lerna flag
* fix build cause --since lerna flag
* removed checkout option
* fix build cause --since lerna flag
* fix build cause --since lerna flag
* fix build in progress
* fix build in progress
* removed --since flag for build executions
* removed --since flag for build executions
* changed action checkout step
* added new ref to the action checkout
* removed ref prop from the action checkout. Added new step to fetch branches to compare when using lerna --since
* changed --since param value
* added --since flag to the build and renamed the fetch step
* removed --since flag from build. Added new config to the checkout step workflow
* removed --since flag from yarn build. Added new config to the checkout step workflow
* removed --since flag from yarn build. Added new step to checkout branch master
* Added new step to checkout branch master