DB/SAI: fixed target_type of spell Vampire Rush, added in my previous commit.
I have used target_type, which caused that NPC used the spell on all players in range, that's wrong.

(cherry picked from commit 1699cf70dd0e33f3e7ea2aedec6270878109ace9)
Core/Networking: Catch possible boost exception in StartNetwork

Closes #13557
DB/Models: Updated creatures' model data up to 6.0.3.19057
DB/Trainers: Truncated `npc_trainer`

* Professions will be redone later
Core/Packets: Added some chat message packets
Merge branch '6.x' of https://github.com/TrinityCore/TrinityCore into 6.x