Fix the version issues for lilypad on requirements.txt

mitogen needs to be upgraded to 0.3.4 for fixing

ERROR! Your Ansible version ((2, 13, 2)) is too recent. The most recent version
supported by Mitogen for Ansible is (2, 12).x. Please check the Mitogen
release notes to see if a new version is available, otherwise
subscribe to the corresponding GitHub issue to be notified when
support becomes available.

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information