Changelog v1.48.4

Fixes

• [cloud-provider-openstack] Remove duplicates from additional security groups in cloud-data-discoverer. #5279
• [cloud-provider-openstack] Fix migration from openstack_blockstorage_volume_v2 to openstack_blockstorage_volume_v3 for bastion hosts. #5271
• [user-authn] Fix kubeconfig certificate generation. #5273

For more information, see the changelog and minor version release changes.