Test deployment workflow no longer runs in PRs

[josh-wong]

Issue

After introducing the PR checklist checker workflow in #96, the Test deployment workflow wasn't running. This was because the PR checklist checker workflow is configured to cancel jobs in progress.

After trying to implement a fix in #101, I got the workflow to run after the PR checklist checker workflow runs, but it seems to run on the main branch instead of the PR branch, according to the Actions tab. In addition, the workflow doesn't show as running in the PR.

Potential fix

Add a configuration in the Test deployment workflow to show the workflow running in the PR.

[josh-wong]

Tried to fix this issue in #103, but now the workflow for testing deployments doesn't run again.

[josh-wong]

Keeping this issue open until I can confirm that the fix in #110 works as expected.