chore: demand certain node fetch (#128)

Author: achingbrain

.github/workflows/main.yml

@@ -30,7 +30,7 @@ jobs:
     strategy:
       matrix:
         os: [windows-latest, ubuntu-latest, macos-latest]
-        node: [12, 14]
+        node: [14, 16]
       fail-fast: true
     steps:
       - uses: actions/checkout@v2

package.json

@@ -63,7 +63,7 @@
     "nanoid": "^3.1.20",
     "native-abort-controller": "^1.0.3",
     "native-fetch": "^3.0.0",
-    "node-fetch": "npm:@achingbrain/node-fetch@^2.6.3",
+    "node-fetch": "npm:@achingbrain/node-fetch@^2.6.4",
     "react-native-fetch-api": "^1.0.2",
     "stream-to-it": "^0.2.2"
   },