Adding support for node-fetch with Firebase/Google Cloud Functions

[macdonaldr93]

When using node-fetch with Cloud Functions, you end up getting this error 👇

Error [ERR_REQUIRE_ESM]: Must use import to load ES Module: /Users/xxx/node_modules/node-fetch/src/index.js

require() of ES modules is not supported. require() of /Users/xxx/node_modules/node-fetch/src/index.js from /Users/xxx/xxx/functions/index.js is an ES module file as it is a .js file whose nearest parent package.json contains "type": "module" which defines all .js files in that package scope as ES modules.

Instead rename /Users/xxx/node_modules/node-fetch/src/index.js to end in .cjs, change the requiring code to use import(), or remove "type": "module" from /Users/xxx/node_modules/node-fetch/package.json.

I understand there are reasons for changing the type to module. But, there should be a way to support Cloud Functions. It's a big use case for this package.

Any ideas or feelings around this?