Fixes Jewelry Ring item bonus (#5253)

* Fixes #5248.
* Commented out LUK bonus.
* Now reduces variable cast time by 30%.
* ASPD and cast reduction bonus now lasts for 5 seconds.
Thanks to @llchrisll!

db/re/item_db.txt

@@ -12577,7 +12577,7 @@
 28322,Falconer_Glove,Falconer Glove,4,0,,100,,5,,1,0x00000800,63,2,136,,80,0,,{ bonus bDex,1; bonus bUseSPrate,-5; },{},{}
 28326,Broken_Chip_1,Broken Chips 01,4,10,,100,,,,1,0xFFFFFFFF,63,2,136,,100,0,,{ bonus bStr,4; },{},{}
 28327,Broken_Chip_2,Broken Chips 02,4,10,,100,,,,1,0xFFFFFFFF,63,2,136,,100,0,,{ bonus bInt,4; },{},{}
-28332,Jewel_Ring,Jewerly Ring,4,10,,100,,,,0,0xFFFFFFFF,63,2,136,,1,0,,{ bonus bLuk,20; autobonus "{ bonus bAspd,2; }",50,2000,BF_WEAPON|BF_MAGIC; },{},{}
+28332,Jewel_Ring,Jewerly Ring,4,10,,100,,,,0,0xFFFFFFFF,63,2,136,,1,0,,{ /* bonus bLuk,20; Event bonus */ autobonus "{ bonus bAspd,2; bonus bVariableCastrate,-30; }",50,5000,BF_WEAPON|BF_MAGIC,"{ specialeffect2 EF_ENCHANCE; }"; },{},{}
 28333,Gold_PC_Room_Ring,Gold PC Room Ring,4,10,,0,,,,1,0xFFFFFFFF,63,2,136,,1,0,,{ bonus bMaxHPrate,3; bonus bMaxSPrate,3; },{},{}
 28342,Critical_Anklet,Critical Anklet,4,0,,200,,3,,1,0xFFFFFFFF,63,2,136,,,0,,{ bonus bCritical,5; },{},{}
 28352,Vesper_Gear_01,Vesper Gear 01,4,20,,100,,1,,1,0xFFFFFFFF,63,2,136,,90,0,0,{ bonus bMdef,3; bonus bMatkRate,5; },{},{}