fix: make sure AUTH_DISABLE_NEW_USERS is respected when using oauth

[dbarrosop]

Fixes nhost/nhost#2914

[github-actions]

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Explore these optional code suggestions:

Category	Suggestion	Score
Best practice	Introduce a local variable for improved code clarity and maintainability when setting the 'disabled' property Consider using a constant or configuration variable for the 'disabled' property value instead of directly accessing ENV.AUTH_DISABLE_NEW_USERS. This approach improves maintainability and allows for easier testing and configuration changes. src/routes/oauth/index.ts [335-341] +const isNewUserDisabled = ENV.AUTH_DISABLE_NEW_USERS; user = await insertUser({ ...userInput, - disabled: ENV.AUTH_DISABLE_NEW_USERS, + disabled: isNewUserDisabled, userProviders: { data: [ { providerId: provider, Suggestion importance[1-10]: 4 Why: The suggestion improves code readability and maintainability by introducing a local variable. However, it's a minor enhancement that doesn't significantly impact functionality or fix any critical issues.	4