chore: fix pkg repo url warning

Author: rolandjitsu

package.json

@@ -25,7 +25,7 @@
   },
   "repository": {
     "type": "git",
-    "url": "https://github.com/react-dropzone/attr-accept.git"
+    "url": "git+https://github.com/react-dropzone/attr-accept.git"
   },
   "publishConfig": {
     "access": "public"