add filter to validate CITATION.cff using Docker image

[fdiblen]

Description

Related issues:

• 4

Instructions to review the pull request

• Make a GitHub Access token here https://github.com/settings/tokens
  • Make sure you copy it when it appears on screen, because you can't see it again. You can reset it, though.
• export GITHUB_TOKEN as an environment variable with the token above

• install Node >= 14

  cd $(mktemp -d --tmpdir cffbot-XXXXXX)
  git clone https://github.com/cffbots/filtering .
  git checkout <this-branch>
  npm install
  node query.mjs

Sample filtered list

urls: [ 'https://github.com/e-mental-health/data-processing', 'https://github.com/NLeSC/python-template', 'https://github.com/NLeSC/case-law-app', 'https://github.com/NLeSC/eEcology-Annotation-WS', 'https://github.com/NLeSC/eEcology-script-wrapper', 'https://github.com/NLeSC/eEcology-SMS-reciever', 'https://github.com/NLeSC/esibayes' ]

[fdiblen]

Thank you @jspaaks and @abelsiqueira for reviewing!