[Onyxia] Onyxia evade zone

### What client do you play on?

ruRU

### Faction

- [ ] Alliance
- [X] Horde

### Content Phase:

- [ ] Generic
- [ ] 1-19
- [ ] 20-29
- [ ] 30-39
- [ ] 40-49
- [ ] 50-59
- [X] 60

### Current Behaviour

1. You can kite Onyxia all over the dungeon and tank wherever you want. She can get to any place, including just flying to you and will not evade.
2. You can be in any part of dungeon during the entire fight.

### Expected Blizzlike Behaviour

1. Onyxia will evade when you come out of her cave.
2. Onyxia will teleport characters to herself if they are far away or unreachable when she is in combat.

### Source

https://classic.wowhead.com/guides/onyxia-onyxias-lair-strategy-wow-classic
https://wowwiki-archive.fandom.com/wiki/Onyxia_(original)

### Steps to reproduce the problem

1. Pull Ony and run out of her cave.
2. When someone pull Ony, run to the beginning of the dungeon or climb on some weird spot

### Extra Notes
https://github.com/chromiecraft/chromiecraft/issues/2997

### AC rev. hash/commit

https://github.com/chromiecraft/azerothcore-wotlk/commit/6f20b9ece71984f1a11469e65ede8accda05653e

### Operating system

Ubuntu 20.04

### Modules

- [mod-ah-bot](https://github.com/azerothcore/mod-ah-bot)
- [mod-cfbg](https://github.com/azerothcore/mod-cfbg)
- [mod-chat-transmitter](https://github.com/azerothcore/mod-chat-transmitter)
- [mod-chromie-xp](https://github.com/azerothcore/mod-chromie-xp)
- [mod-desertion-warnings](https://github.com/azerothcore/mod-desertion-warnings)
- [mod-duel-reset](https://github.com/azerothcore/mod-duel-reset)
- [mod-eluna-lua-engine](https://github.com/azerothcore/mod-eluna-lua-engine)
- [mod-ip-tracker](https://github.com/azerothcore/mod-ip-tracker)
- [mod-low-level-arena](https://github.com/azerothcore/mod-low-level-arena)
- [mod-multi-client-check](https://github.com/azerothcore/mod-multi-client-check)
- [mod-pvp-titles](https://github.com/azerothcore/mod-pvp-titles)
- [mod-pvpstats-announcer](https://github.com/azerothcore/mod-pvpstats-announcer)
- [mod-queue-list-cache](https://github.com/azerothcore/mod-queue-list-cache)
- [mod-server-auto-shutdown](https://github.com/azerothcore/mod-server-auto-shutdown)
- [mod-save-inventory](https://github.com/Nyeriah/mod-save-inventory)
- [lua-carbon-copy](https://github.com/55Honey/Acore_CarbonCopy)
- [lua-exchange-npc](https://github.com/55Honey/Acore_ExchangeNpc)
- [lua-custom-worldboss](https://github.com/55Honey/Acore_CustomWorldboss)
- [lua-level-up-reward](https://github.com/55Honey/Acore_LevelUpReward)
- [lua-recruit-a-friend](https://github.com/55Honey/Acore_RecruitAFriend)
- [lua-send-and-bind](https://github.com/55Honey/Acore_SendAndBind)
- [lua-temp-announcements](https://github.com/55Honey/Acore_TempAnnouncements)
- [lua-zonecheck](https://github.com/55Honey/acore_Zonecheck)
- [lua-zone-debuff](https://github.com/55Honey/Acore_ZoneDebuff)

### Customizations

None

### Server

ChromieCraft

No source files or tests are named. Reproduce the encounter using the listed steps, then inspect the Onyxia encounter implementation and compare its behavior with the linked WoW references and AzerothCore commit. Done means Onyxia evades outside her cave and brings back distant or unreachable players during combat.

Written by the indexing model from the issue text.