Migrate rgblight.pin and RGB_DI_PIN to ws2812.pin (#20303)

keyboards/star75/config.h

@@ -9,8 +9,6 @@ SPDX-License-Identifier: GPL-2.0-or-later */
 /* Locking resynchronize hack */
 #define LOCKING_RESYNC_ENABLE
 
-#define RGB_DI_PIN B3
-
 #define RGBLIGHT_EFFECT_BREATHING
 #define RGBLIGHT_EFFECT_RAINBOW_MOOD
 #define RGBLIGHT_EFFECT_RAINBOW_SWIRL

keyboards/star75/info.json

@@ -8,6 +8,9 @@
         "pid": "0x6060",
         "device_version": "0.0.1"
     },
+    "ws2812": {
+        "pin": "B3"
+    },
     "matrix_pins": {
         "cols": ["D4", "D6", "D7", "B4", "B5", "B6", "C6", "C7", "F7", "F6", "F5", "F4", "F1", "F0", "E6"],
         "rows": ["B7", "D0", "D1", "D2", "D3", "D5"]