TESTING, again, changes for gha 2592

[t-will-gillis]

Fixes #2592

What changes did you make and why did you make them ?

• Continuation of first PR GHAs Remove Merged PRs from Project Board  #3846 , and PR TESTING final changes for testing gha 2592 #3867
• Changed workflow run from previous on: pull_request to on: pull_request_target on line 3, also fixed minor grammatical error on line 9.
• Justin D and I discussed last Thursday, Jan 26 after the last PR was merged and then reverted due to an error message: Parameter token or opts.auth is required at the 'Gather-Merged-PRs' action. The token & automation here is the same as for 'Move-Closed-Issues.' The latter automation is triggered by an 'issue' event and the automation runs successfully with read/write privileges, and the former is triggered by a 'pull-request' event and fails to run due to read only privileges. The GitHub Docs discuss differences in permissions between the different events esp. with forked, public repositories.
• See below: the GitHub Docs suggest that the problem may be solved by renaming the event as noted above.

Screenshots of Proposed Changes Of The Website (if any, please do not screen shot code changes)

Visuals before changes are applied

Visuals after changes are applied

[github-actions]

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From your project repository, check out a new branch and test the changes.

git checkout -b t-will-gillis-TESTING-2-delete-merged-prs-2592 gh-pages
git pull https://github.com/t-will-gillis/website.git TESTING-2-delete-merged-prs-2592

[jdingeman]

See comment about testing this GHA.

Merging this PR for testing - will revert if unsuccessful.

[jdingeman]

Hey @t-will-gillis - you did a fantastic job. Looks like this PR was successfully removed from the project board. I watched it move to the top of test-approved-by-reviewer and prompty disappear off the column. See line above this comment showing that the HackforLABot removed the PR from the project board.

[jdingeman]

Also checked that this PR didn't somehow override the actions set in the sort-closed-issues.js since the HackforLABot moved the linked issue immediately from QA to Done -- the linked issue has no hard labels related to the front end of the website so it shouldn't violate any rule in the .js file