fix(data/tablet): correct ram_gb for 2011 Kindle Fire per Wikipedia

Author: Seungpyo1007

data/tablet/amazon/2011/kindle-fire/amazon-kindle-fire-aitoolbuzz-689-1gb.json

@@ -4,12 +4,13 @@
   "name": "Kindle Fire",
   "brand": "amazon",
   "release_date": "2011-01-01",
-  "ram_gb": 1,
+  "ram_gb": 0.5,
   "battery_mah": 4400,
   "weight_g": 413.0,
   "os": "Android",
   "verified": false,
   "source_urls": [
+    "https://en.wikipedia.org/wiki/Amazon_Fire_tablet",
     "https://aitoolbuzz.com/mobiles/amazon-kindle-fire"
   ],
   "variant": {

data/tablet/amazon/2011/kindle-fire/amazon-kindle-fire.json

@@ -4,7 +4,7 @@
   "name": "Amazon Kindle Fire",
   "brand": "amazon",
   "release_date": "2011-09-01",
-  "ram_gb": 1,
+  "ram_gb": 0.5,
   "storage_options_gb": [
     8
   ],
@@ -32,6 +32,7 @@
   },
   "verified": false,
   "source_urls": [
+    "https://en.wikipedia.org/wiki/Amazon_Fire_tablet",
     "https://www.kaggle.com/datasets/arwinneil/gsmarena-phone-dataset"
   ],
   "soc": "ti-omap-4430",

data/tablet/amazon/2011/kindle-fire/kindle-fire.json

@@ -4,12 +4,13 @@
   "brand": "amazon",
   "soc": "ti-omap-4430",
   "release_date": "2011-01-01",
-  "ram_gb": 1,
+  "ram_gb": 0.5,
   "battery_mah": 4400,
   "weight_g": 413.0,
   "os": "Android",
   "verified": false,
   "source_urls": [
+    "https://en.wikipedia.org/wiki/Amazon_Fire_tablet",
     "https://www.kaggle.com/datasets/msainani/gsmarena-mobile-devices"
   ],
   "storage_options_gb": [
@@ -39,7 +40,7 @@
     "source_category": "smartphone-reclassified",
     "source_slug": "kindle-fire",
     "memory": {
-      "ram_gb": 1,
+      "ram_gb": 0.5,
       "storage_gb": 8
     },
     "network": {