bump pixelmatch

Author: archmoj

package-lock.json

@@ -160,7 +160,7 @@
     "minify-stream": "^2.1.0",
     "npm-link-check": "^4.0.0",
     "open": "^8.4.0",
-    "pixelmatch": "^5.2.1",
+    "pixelmatch": "^5.3.0",
     "prepend-file": "^2.0.1",
     "prettysize": "^2.0.0",
     "read-last-lines": "^1.8.0",