Core/Misc: added more fallthrough attributes and added some missing breaks reported by CI

src/server/scripts/Spells/spell_generic.cpp

@@ -2970,6 +2970,7 @@ class spell_gen_replenishment : public SpellScriptLoader
                     case SPELL_REPLENISHMENT:
                     case SPELL_INFINITE_REPLENISHMENT:
                         amount = CalculatePct(GetUnitOwner()->GetMaxPower(POWER_MANA), 0.1f);
+                        break;
                     default:
                         break;
                 }