fix(Scripts/Battlegrounds/AlteracValley): Adding missing Tower Archers

[Knindzagxg]

Changes Proposed:

This PR proposes changes to:

• Core (units, players, creatures, game systems).

SOURCE:

The changes have been validated through:

• Live research (checked on live servers, e.g Classic WotLK, Retail, etc.)
• Video evidence, knowledge databases or other public sources (e.g forums, Wowhead, etc.)

Tests Performed:

This PR has been:

• Tested in-game by the author.

How to Test the Changes:

• This pull request can be tested by following the reproduction steps provided in the linked issue

1. Log into game and .debug bg.
2. Check spawns on the Towers and Archers AI.

Known Issues and TODO List:

• [ ]
• [ ]

How to Test AzerothCore PRs

When a PR is ready to be tested, it will be marked as [WAITING TO BE TESTED].

You can help by testing PRs and writing your feedback here on the PR's page on GitHub. Follow the instructions here:

http://www.azerothcore.org/wiki/How-to-test-a-PR

REMEMBER: when testing a PR that changes something generic (i.e. a part of code that handles more than one specific thing), the tester should not only check that the PR does its job (e.g. fixing spell XXX) but especially check that the PR does not cause any regression (i.e. introducing new bugs).

For example: if a PR fixes spell X by changing a part of code that handles spells X, Y, and Z, we should not only test X, but we should test Y and Z as well.

[icedcolor]

There are no NPC guards in Horde's cave.

[sudlud]

There are no NPC guards in Horde's cave.

Is this an issue of this PR or just a general issue of AV?