more explicit node-fetch version

Author: jnsdls

package.json

@@ -69,7 +69,7 @@
     "@ethersproject/providers": "^5.5.0",
     "@ethersproject/units": "^5.5.0",
     "form-data": "^4.0.0",
-    "node-fetch": "^2",
+    "node-fetch": "^2.6.5",
     "ts-enum-util": "^4.0.2"
   },
   "bugs": {

yarn.lock

@@ -4199,7 +4199,7 @@ node-addon-api@^3.2.1:
   resolved "https://registry.yarnpkg.com/node-addon-api/-/node-addon-api-3.2.1.tgz#81325e0a2117789c0128dab65e7e38f07ceba161"
   integrity sha512-mmcei9JghVNDYydghQmeDX8KoAm0FAiYyIcUt/N4nhyAipB17pllZQDOJD2fotxABnt4Mdz+dKTO7eftLg4d0A==
 
-node-fetch@^2:
+node-fetch@^2.6.5:
   version "2.6.5"
   resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.6.5.tgz#42735537d7f080a7e5f78b6c549b7146be1742fd"
   integrity sha512-mmlIVHJEu5rnIxgEgez6b9GgWXbkZj5YZ7fx+2r94a2E+Uirsp6HsPTPlomfdHtpt/B0cdKviwkoaM6pyvUOpQ==