Update dependency fs-extra to v10

Author: renovate-bot

packages/image-transform/package.json

@@ -27,7 +27,7 @@
   "dependencies": {
     "@tryghost/errors": "^1.2.1",
     "bluebird": "^3.7.2",
-    "fs-extra": "^9.1.0"
+    "fs-extra": "^10.0.0"
   },
   "optionalDependencies": {
     "sharp": "^0.30.0"