Typo fix for 'noFineGrainedAccess'

[nguyenalex836]

Why:

Closes: https://github.com/github/docs-content/issues/16988

What's being changed (if available, include any code snippets, screenshots, or gifs):

Fixing typo in variable 'noFineGrainedAccess'

Check off the following:

• A subject matter expert (SME) has reviewed the technical accuracy of the content in this PR. In most cases, the author can be the SME. Open source contributions may require a SME review from GitHub staff.
• The changes in this PR meet the docs fundamentals that are required for all content.
• All CI checks are passing and the changes look good in the preview environment.

[welcome]

Thanks for opening this pull request! A GitHub docs team member should be by to give feedback soon. In the meantime, please check out the contributing guidelines.

Copilot reviewed 1 out of 1 changed files in this pull request and generated no comments.

Tip: If you use Visual Studio Code, you can request a review from Copilot before you push from the "Source Control" tab. Learn more

[github-actions]

👋 Hey there spelunker. It looks like you've modified some files that we can't accept as contributions:

• src/rest/components/RestAuth.tsx

You'll need to revert all of the files you changed that match that list using GitHub Desktop or git checkout origin/main <file name>. Once you get those files reverted, we can continue with the review process.

The complete list of files we can't accept are:

• .devcontainer/**
• .github/**
• data/reusables/rai/**
• Dockerfile*
• src/**
• package*.json
• content/actions/deployment/security-hardening-your-deployments/**

We also can't accept contributions to files in the content directory with frontmatter type: rai.