Jest tests are currently organized into main configuration files (src/dev/jest/config.js and x-pack/dev-tools/jest/create_jest_config.js). Both of these are similar, but very slightly due to previously being in separate repositories. This change consolidates the scripts referenced in those configs and moves them to the `@kbn/test` project.
OSS contained an alias for `test_utils`. Those aliases have been removed in favor of importing these utilities from `@kbn/test/jest`
Blocker to #72569
Signed-off-by: Tyler Smalley <tyler.smalley@elastic.co>
