Fix rate limit issue with EditorConfig checker CLI

[colinrotherham]

Closes #4224 as part of #4223

This PR fixes an issue where the editorconfig-checker npm package throws a GitHub REST API error:

Failed to download binary:
HttpError: API rate limit exceeded for 40.84.178.209. (But here's the good news: Authenticated requests get a higher rate limit. Check out the documentation for more details.)

On first run, the editorconfig-checker npm package (Node.js) downloads its binary (Go) from GitHub releases

• EditorConfig checker (Node.js wrapper): editorconfig-checker.javascript
• EditorConfig checker (Go binary): editorconfig-checker

Steps to reproduce

Run these steps too many times:

1. Use GitHub Actions to run npm run lint:editorconfig
2. EditorConfig checker Node.js from editorconfig-checker hits GitHub REST API to check for latest release
3. EditorConfig checker binary from editorconfig-checker releases is downloaded to /home/runner/work/_temp/
4. EditorConfig checker binary runs

The problem

The error throws from step 2) above via @octokit/rest (GitHub REST API client for JavaScript) in lines:

https://github.com/editorconfig-checker/editorconfig-checker.javascript/blob/b6f19742da5d22e47ca09884b13c0bed03b551f1/src/release.ts#L12-L15

The fix

This PR adds GITHUB_TOKEN similar to our own GitHub REST API calls (#3229, #3282)

[github-actions]

📋 Stats

File sizes

File	Size
dist/govuk-frontend-5.0.0-beta.0.min.css	114 KiB
dist/govuk-frontend-5.0.0-beta.0.min.js	37.85 KiB
packages/govuk-frontend/dist/govuk/all.bundle.js	77.08 KiB
packages/govuk-frontend/dist/govuk/all.bundle.mjs	72.37 KiB
packages/govuk-frontend/dist/govuk/all.mjs	3.8 KiB
packages/govuk-frontend/dist/govuk/govuk-frontend-component.mjs	359 B
packages/govuk-frontend/dist/govuk/govuk-frontend.min.css	113.99 KiB
packages/govuk-frontend/dist/govuk/govuk-frontend.min.js	37.92 KiB
packages/govuk-frontend/dist/govuk/i18n.mjs	5.3 KiB

Modules

File	Size
all.mjs	68.7 KiB
components/accordion/accordion.mjs	21.35 KiB
components/button/button.mjs	4.48 KiB
components/character-count/character-count.mjs	20.79 KiB
components/checkboxes/checkboxes.mjs	5.61 KiB
components/error-summary/error-summary.mjs	5.79 KiB
components/exit-this-page/exit-this-page.mjs	15.79 KiB
components/header/header.mjs	3.68 KiB
components/notification-banner/notification-banner.mjs	4.32 KiB
components/radios/radios.mjs	4.6 KiB
components/skip-link/skip-link.mjs	3.6 KiB
components/tabs/tabs.mjs	9.37 KiB

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Action run for 1184c15

[romaricpascal]

GITHUB_TOKEN is configured for restricted access, so I think it's fine to have it as an env variable.

Let's see if that sorts the download of editorconfig-checker 🤞🏻 ⛵