Create build-test-release.yml triggered on push to release branch to build deploy and run release actions

[spbolton]

Create a new top-level workflow that is triggered on a push to the "release" branch created in #28548 and runs build/test/deploy steps as in nightly build making sure that existing steps e.g. docker deploy are tagged correctly. Do not add yet new steps that will be covered in the separate composite actions.

The following should be taken into account

1. Extract release version numbering for docker, npm etc based upon contents of .mvn/maven.config
2. Configure initially to push to a test artifactory repository
3. Make sure version numbering is consistent and the logic is contained within the script
4. By default should migrate the current head of the source branch, but there may be cases where a previous version should be specified. If this is the case we need to make sure that the version is not behind the last release.
5. Create and configure "release" github environment for deployment