@actions/github 2.1.0 breaks auth check

[tianhaoz95]

Describe the bug
new github.GitHub(token); breaks when upgrade @actions/github from 2.0.1 to 2.1.0 with error message Parameter token or opts.auth is required and trace:

at Function.getAuthString (node_modules/@actions/github/src/github.ts:111:13)
at Function.getOctokitOptions (node_modules/@actions/github/src/github.ts:65:25)
at new GitHub (node_modules/@actions/github/src/github.ts:40:18)
at getOctokit (src/octo.ts:10:15)
at Object.<anonymous> (src/octo.ts:14:24)
at Object.<anonymous> (__tests__/octo.test.ts:2:1)

for details see this action run: https://github.com/tianhaoz95/readable-readme/pull/307/checks?check_run_id=411469798#step:4:97

To Reproduce
Steps to reproduce the behavior:

1. use @actions/github at version 2.0.1, construct a octokit object
2. upgrade to 2.1.0
3. it throws an error

Expected behavior
It should construct the octokit with token given.

Additional context
In the code we can see that 9 days ago this was added:

toolkit/packages/github/src/github.ts

Line 37 in 432a78c

constructor(token: string, opts?: Omit<Octokit.Options, 'auth'>)

If the octokit is complaining about auth, then it makes me think that there is a check for auth between the construction of the github object and octokit.

[tianhaoz95]

nvm, it's a global init error.

[thejohnfreeman]

What does this mean "it's a global init error"? This is the only Google result for "Parameter token or opts.auth is required".

[tianhaoz95]

@thejohnfreeman
It has been a while since I fixed it in my code. I vaguely remember that it was caused by instantiating the GitHub object globally which went before gathering all the information it needs making it an undefined behavior.