Update submodules:

• balance_tracker: update-submodules-for-1.27.7rc12 (0867f2f1178b1e3960e6fa93621167175ac7ed3d)
• HAfAH: update-submodules-for-1.27.7rc12 (cb41b50522337ee0bdd2e3e3e516a4f22268138a)
• haf: update-submodules-for-1.27.7rc12 (5bf7225d906ace16ef1dde540f68f3209477f542)
• reputation_tracker: update-submodules-for-1.27.7rc12 (7e8fa100fc5f7bbf3630ee19e9ca1a134dd167a7)