Release 1.5.1

* Added `SERIAL` data type to create incrementing key
  in [#454](https://gitlab.phaidra.org/fair-data-austria-db-repository/fda-services/-/issues/454)

* Remove the Data Database Sidecar and replace it with Apache Spark
  in [#458](https://gitlab.phaidra.org/fair-data-austria-db-repository/fda-services/-/issues/458).
* Allow anonymous users to create subsets for public databases
  in [#449](https://gitlab.phaidra.org/fair-data-austria-db-repository/fda-services/-/issues/449).
* Show file upload progress
  in [#448](https://gitlab.phaidra.org/fair-data-austria-db-repository/fda-services/-/issues/448).
* Change the Docker image of the Auth Service to Bitnami-maintained similar to Kubernetes deployment with accompanying
  Auth Database change to PostgreSQL
  in [#455](https://gitlab.phaidra.org/fair-data-austria-db-repository/fda-services/-/issues/455)

* Preventing the semicolon `;` to be used in UI and fixed cryptic subset execution error messages
  in [#456](https://gitlab.phaidra.org/fair-data-austria-db-repository/fda-services/-/issues/456).
* Multiple UI errors in [#453](https://gitlab.phaidra.org/fair-data-austria-db-repository/fda-services/-/issues/453).
* Fixed install script.sh
  in [#444](https://gitlab.phaidra.org/fair-data-austria-db-repository/fda-services/-/issues/444)
* No hardcoded data type metadata in UI but instead added it hardcoded (associated with `image_id`) Metadata Database.

The infrastructure now checks in the backend if the services are ready. Mostly this is done through creating a file upon Spring Boot @PostConstruct, for the metadata db it is done with PostgreSQL pg_isready

First public release, also tagged a snapshot for citation in Zenodo: https://zenodo.org/record/5136437, as well as a DOI: https://doi.org/10.5281/zenodo.5136437