There were tasks:

• Add swap module ansible/ansible#5241 (Add swap module)
• Unable to mount multiple swap files  ansible/ansible#30090 (Unable to mount multiple swap files)

closed due to migration to collections.

Docs:

• https://docs.ansible.com/ansible/latest/collections/ansible/posix/mount_module.html
• https://galaxy.ansible.com/ansible/posix

don't mention swap support. I believe it is not implemented.

There are two things here:

• swap creation (LVM/file/partition) - because of variety it is out of scope
• swap registration and activation:
  • add/update/remove entry in /etc/fstab
  • call to swapon/swapoff.