Link M1, M2 and M4 iPad Pro records to the new Apple M-series SoCs

Author: Seungpyo1007

data/tablet/apple/2021/ipad-pro-11-2021/apple-ipad-pro-11-2021-16gb-512gb-5g.json

@@ -2,6 +2,7 @@
   "slug": "apple-ipad-pro-11-2021-16gb-512gb-5g",
   "name": "Apple iPad Pro 11 (2021)",
   "brand": "apple",
+  "soc": "apple-m1",
   "release_date": "2021-04-20",
   "ram_gb": 16.0,
   "battery_mah": 7538,

data/tablet/apple/2021/ipad-pro-12-9-2021/apple-ipad-pro-12-9-2021-16gb-512gb-5g.json

@@ -2,6 +2,7 @@
   "slug": "apple-ipad-pro-12-9-2021-16gb-512gb-5g",
   "name": "Apple iPad Pro 12.9 (2021)",
   "brand": "apple",
+  "soc": "apple-m1",
   "release_date": "2021-04-20",
   "ram_gb": 16.0,
   "battery_mah": 10758,

data/tablet/apple/2022/ipad-pro-11-2022/apple-ipad-pro-11-2022-16gb-512gb-5g.json

@@ -2,6 +2,7 @@
   "slug": "apple-ipad-pro-11-2022-16gb-512gb-5g",
   "name": "Apple iPad Pro 11 (2022)",
   "brand": "apple",
+  "soc": "apple-m2",
   "release_date": "2022-10-18",
   "ram_gb": 16.0,
   "battery_mah": 7538,

data/tablet/apple/2022/ipad-pro-12-9-2022/apple-ipad-pro-12-9-2022-16gb-512gb-5g.json

@@ -2,6 +2,7 @@
   "slug": "apple-ipad-pro-12-9-2022-16gb-512gb-5g",
   "name": "Apple iPad Pro 12.9 (2022)",
   "brand": "apple",
+  "soc": "apple-m2",
   "release_date": "2022-10-18",
   "ram_gb": 16.0,
   "battery_mah": 10758,

data/tablet/apple/2024/ipad-pro-11-2024/apple-ipad-pro-11-2024-16gb-512gb-5g.json

@@ -2,6 +2,7 @@
   "slug": "apple-ipad-pro-11-2024-16gb-512gb-5g",
   "name": "Apple iPad Pro 11 (2024)",
   "brand": "apple",
+  "soc": "apple-m4",
   "release_date": "2024-05-07",
   "ram_gb": 16.0,
   "battery_mah": 8160,

data/tablet/apple/2024/ipad-pro-13-2024/apple-ipad-pro-13-2024-16gb-512gb-5g.json

@@ -2,6 +2,7 @@
   "slug": "apple-ipad-pro-13-2024-16gb-512gb-5g",
   "name": "Apple iPad Pro 13 (2024)",
   "brand": "apple",
+  "soc": "apple-m4",
   "release_date": "2024-05-07",
   "ram_gb": 16.0,
   "battery_mah": 10290,