Enact the third rules update for SR2024

This adds the virtual competition, a rule against using the simulator
for challenges, and clarification of "in".

This is built from:
- srobo/rules@541c747
- https://output.circle-artifacts.com/output/job/d2311487-7d37-44ee-89ef-682473f47929/artifacts/0/rulebook.html

Author: prophile