net-im/py-matrix-synapse: Update to 1.105.0

• Update LICENSE to AGPLv3

PR: 276766
Tested by: Marko Cupać <marko.cupac at mimar dot rs>
Approved by: maintainer timeout
MFH: 2024Q2 (long due)

(cherry picked from commit a73b9123eb70124ee42329a743a803be9ad064e1)