[BUG] - Nebari init unnecessarily prompts for credentials with --auth-provider Auth0 and GitHub

[sblair-metrostar]

Describe the bug

Running nebari init ... --auth-provider Auth0 or nebari init ... --auth-provider GitHub will prompt for credentials despite having set the appropriate environment variables or the use of the --disable-prompt option

Expected behavior

1. nebari init should succeed without prompt when the required environment variables have been set
2. nebari init should fail if required environment variables are not set and --disable-prompt is used

OS and architecture in which you are running Nebari

Ubunut Linux, x64

How to Reproduce the problem?

GITHUB_CLIENT_ID=test GITHUB_CLIENT_SECRET=test nebari init local --project-name foobar --auth-provi
der GitHub
Github client_id: test
Github client_secret: test

AUTH0_CLIENT_ID=test AUTH0_CLIENT_SECRET=test AUTH0_DOMAIN=test nebari init local --project-name foobar --auth-provider Auth0
Auth0 client_id: test
Auth0 client_secret: test
Auth0 subdomain: test

GITHUB_CLIENT_ID=test GITHUB_CLIENT_SECRET=test nebari init local --project-name foobar --auth-provider GitHub --disable-prompt

Command output

No response

Versions and dependencies used.

Nebari: 2023.7.2.dev

Compute environment

None

Integrations

No response

Anything else?

No response