Plan heat defender is broken

[DrInfy]

Describe the bug This is calling the .execute() without arguments, but it expects arguments: https://github.com/DrInfy/sharpy-sc2/blob/develop/sharpy/managers/group_combat_manager.py#L96

To Reproduce Add it to bot. Should crash the bot.

Expected behavior Adept should stay in places where reapers like to stay the most and kill them when seen