feat: add support for gif stickers

src/util/Constants.js

@@ -1435,10 +1435,11 @@ exports.StickerTypes = createEnum([null, 'STANDARD', 'GUILD']);
  * * PNG
  * * APNG
  * * LOTTIE
+ * * GIF
  * @typedef {string} StickerFormatType
  * @see {@link https://discord.com/developers/docs/resources/sticker#sticker-object-sticker-format-types}
  */
-exports.StickerFormatTypes = createEnum([null, 'PNG', 'APNG', 'LOTTIE']);
+exports.StickerFormatTypes = createEnum([null, 'PNG', 'APNG', 'LOTTIE', 'GIF']);
 
 /**
  * An overwrite type:

typings/enums.d.ts

@@ -303,6 +303,7 @@ export const enum StickerFormatTypes {
   PNG = 1,
   APNG = 2,
   LOTTIE = 3,
+  GIF = 4,
 }
 
 export const enum StickerTypes {