fix(DB/Creature): Correct spells order for Broken-down Shredder (issue 18729)

[xubpwg]

Changes Proposed:

This PR proposes changes to:

• Database (creatures).

Issues Addressed:

• Closes 18729

SOURCE:

Wrath retail

Tests Performed:

This PR has been:

• Tested in-game by the author.
• Tested in-game by other community members/someone else other than the author/has been live on production servers.
• This pull request requires further testing and may have edge cases to be tested.

How to Test the Changes:

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

Known Issues and TODO List:

Issue comment says that shredder can do melee attack on Classic, but I can't found any video for that behavior, so that question is still unclear

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[Kitzunu]

#18729 (comment) says that shredder can do melee attack on Classic, but I can't found any video for that behavior, so that question is still unclear

Bench is a reliable source, so if you can fix this it would be awesome

[elthehablo]

Thanks for the PR