Remove unused workflow key jobs.<job_id>.with.<with_id> from context availability table

[rhysd]

following the discussion here:

https://github.com/orgs/community/discussions/148153

Why:

Closes: #35828

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

Removed the unused workflow key jobs.<job_id>.with.<with_id> from the context availability table.

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.

[github-actions]

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Source	Preview	Production	What Changed
actions/writing-workflows/choosing-what-your-workflow-does/accessing-contextual-information-about-workflow-runs.md	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10

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fpt: Free, Pro, Team
ghec: GitHub Enterprise Cloud
ghes: GitHub Enterprise Server

[rhysd]

Here is the link to the deployed environment: https://docs-35829-c81f4a.preview.ghdocs.com/en/actions/writing-workflows/choosing-what-your-workflow-does/accessing-contextual-information-about-workflow-runs#context-availability

[rhysd]

CI passed.

[nguyenalex836]

@rhysd Thanks so much for opening a PR! I'll get this triaged for review ✨

[github-actions]

Thanks for opening a pull request! We've triaged this issue for technical review by a subject matter expert 👀

[nguyenalex836]

@rhysd Thank you for your patience while our SME team reviewed! ✨ They wanted to relay the following:

It is not unused - it refers to a reusable workflow input.

jobs:
  test:
    uses: ./.github/workflows/nested/reusable-workflow.yaml
    with:
      username: ${{ }}

https://docs.github.com/en/actions/writing-workflows/workflow-syntax-for-github-actions#jobsjob_idwithinput_id

Maybe it's worth matching the <input_id> naming we use in the Workflow Syntax doc?

jobs.<job_id>.with.<input_id>

Would you be willing to update your PR to instead match the <input_id> naming we use in the Workflow Syntax doc? 💛