* Revert "Revert "Build OSS branch for deploying to Cloud env (#11474)""
This reverts commit 55e3c1e051.
* add action to get dev branch tag to OSS project instead of doing it in cloud
* remove dev branch version action, going to do this in cloud afterall
* add VERSION buildArg to Dockerfiles, default to current airbyte version but overwritable
* use VERSION env var consistently as Dockerfile buildArg, jar version, and tag
pass version and image_tag into docker build task function
* add github action for building and pushing an OSS branch for Cloud to consume
* allow AirbyteVersion to validate versions containing 'oss-branch' prefix
* change oss-branch prefix to dev for branch-based versions
* better action name
* add docker-compose-cloud.build.yaml to define minimum set of cloud images that are pushed by oss branch action
* update local dev docs to describe optional usage of VERSION env var
* make branch_version_tag input optional, if not provided, generates dev-<commit_hash>
* fix typo
* fix missed merge conflict
* update docker docs
* update integrationRunner isDev check
This making the build using a gradle plugin instead of using docker-compose build.
It aims to make the build to be more incremental as described in #7306
Building the docker image don't rely on docker-compose anymore.
The docker build step is isolated into a dedicated folder (in order to make sure that gradle plugin don't recompute the build of the docker container)
Gradle is responsible for copying the files that docker needs to build its image.
That removes the need of having a dockerignore file.
This might not be effective until #7539 is solved.
