Upgrade fetch dep

Author: zachleat

package.json

@@ -38,7 +38,7 @@
   },
   "homepage": "https://github.com/11ty/eleventy-img#readme",
   "dependencies": {
-    "@11ty/eleventy-fetch": "^5.0.2-beta.1",
+    "@11ty/eleventy-fetch": "^5.0.2-beta.2",
     "@11ty/eleventy-utils": "^1.0.3",
     "brotli-size": "^4.0.0",
     "debug": "^4.4.0",