Asset: Add v1p2beta1 client (#6040)
Asset: Add v1p2beta1 client (#6040)

* Add asset v1p2beta1 client

* Add pom.xml files and versions.txt configs

* Fix versions in pom files

googleapis/java-cloud-bom,googleapis/java-cloud-bom,googleapis/java-cloud-bom,googleapis/java-cloud-bom