Update pngjs and jpeg-js dependencies (#1845)

Author: p01

package.json

@@ -46,9 +46,9 @@
     "debug": "^4.1.0",
     "extract-zip": "^2.0.0",
     "https-proxy-agent": "^3.0.0",
-    "jpeg-js": "^0.3.6",
+    "jpeg-js": "^0.3.7",
     "mime": "^2.4.4",
-    "pngjs": "^3.4.0",
+    "pngjs": "^5.0.0",
     "progress": "^2.0.3",
     "proxy-from-env": "^1.1.0",
     "rimraf": "^3.0.2",