let github_token be the option of the plugin

[yegor256]

Now, we have to do this:

- uses: zerocracy/[email protected]
  with:
    factbase: foo.fb
    verbose: true
    output: my-directory
    columns: who,when,repository
    hidden: _id,_time
    options: |
      github_token=${{ secrets.GITHUB_TOKEN }}

Let's make it possible to do this:

- uses: zerocracy/[email protected]
  with:
    factbase: foo.fb
    verbose: true
    output: my-directory
    columns: who,when,repository
    hidden: _id,_time
    github_token: ${{ secrets.GITHUB_TOKEN }}