fix: memory leak

Author: KuznetsovRoman

lib/image/image.js

@@ -7,6 +7,8 @@ const {RGB_IMAGE_CHANNELS, BITS_IN_BYTE} = require('../constants');
 
 const supportedFormats = ['JPEG', 'PNG', 'WEBP', 'GIF', 'AVIF', 'TIFF', 'SVG'];
 
+const imageMagickFinalizationRegistry = new FinalizationRegistry(fn => fn())
+
 module.exports = class Image extends ImageBase {
     constructor(buffer, rgb) {
         super();
@@ -17,10 +19,12 @@ module.exports = class Image extends ImageBase {
             settings = new magick.MagickReadSettings({format: 'RGB', width: rgb.width, height: rgb.height});
         }
 
-        this._img = magick.MagickImage.create(buffer, settings);
+        const imgRef = this._img = magick.MagickImage.create(buffer, settings);
 
         this._width = this._img.width;
         this._height = this._img.height;
+
+        imageMagickFinalizationRegistry.register(this, () => imgRef.dispose());
     }
 
     /**