Add cache purging to staging deploy

[zwolf]

Please request review from @zooniverse/frontend team or an individual member of that team.

Package

Linked Issue and/or Talk Post

Describe your changes

Adds a new step to the staging deploy github action that purges the entire frontend-preview-zooniverse-org Front Door cache. Utilizes a new ci-cd repo reusable workflow (and requires zooniverse/ci-cd#87 to be merged prior to deploying this).

This is intended to precede the production version of this feature so I can test running the new ci-cd workflow from this repo. Also need to confirm that purging /* is definitely what we want to do. Using the new shared workflow to affect multiple paths is possible, but it would need some tweaking.

How to Review

Helpful explanations that will make your reviewer happy:

• What Zooniverse project should my reviewer use to review UX?
• What user actions should my reviewer step through to review this PR?
• Which storybook stories should be reviewed?
• Are there plans for follow up PR’s to further fix this bug or develop this feature?

Checklist

PR Creator - Please cater the checklist to fit the review needed for your code changes.
PR Reviewer - Use the checklist during your review. Each point should be checkmarked or discussed before PR approval.

General

• Tests are passing locally and on Github
• Documentation is up to date and changelog has been updated if appropriate
• You can yarn panic && yarn bootstrap or docker-compose up --build and FEM works as expected
• FEM works in all major desktop browsers: Firefox, Chrome, Edge, Safari (Use Browserstack account as needed)
• FEM works in a mobile browser

General UX

Example Staging Project: i-fancy-cats

• All pages of a FEM project load: Home Page, Classify Page, and About Pages
• Can submit a classification
• Can sign-in and sign-out
• The component is accessible
  • Can be used with a screen reader BBC guide to VoiceOver
  • Can be used from the keyboard WebAIM guide to keyboard testing
  • It is passing accessibility checks in the storybook

Bug Fix

• The PR creator has listed user actions to use when testing if bug is fixed
• The bug is fixed
• Unit tests are added or updated

New Feature

• The PR creator has listed user actions to use when testing the new feature
• Unit tests are included for the new feature
• A storybook story has been created or updated
  • Example of SlideTutorial component with docgen comments, and its story

Refactoring

• The PR creator has described the reason for refactoring
• The refactored component(s) continue to work as expected

Maintenance

• If not from dependabot, the PR creator has described the update (major, minor, or patch version, changelog)

Post-merge

• This PR adds translations keys to English dictionary(s). See guidance for pulling new keys to Lokalise here.

[coveralls]

coverage: 77.832% (+0.008%) from 77.824%
when pulling 6924ecb on deploy-purge-cache-staging
into 2c203a1 on master.