Core/Spell: do not fail triggered Charge effects in case a root is present.

Fixes Master's call when pet is rooted

src/server/game/Spells/Spell.cpp

@@ -5250,7 +5250,7 @@ SpellCastResult Spell::CheckCast(bool strict)
                         m_caster->RemoveMovementImpairingAuras();
                 }
 
-                if (m_caster->HasUnitState(UNIT_STATE_ROOT))
+                if (!(_triggeredCastFlags & TRIGGERED_IGNORE_CASTER_AURAS) && m_caster->HasUnitState(UNIT_STATE_ROOT))
                     return SPELL_FAILED_ROOTED;
 
                 if (GetSpellInfo()->NeedsExplicitUnitTarget())