Fix pre-release candidate publishing

🗣 Description

Fixes the publish to PSGallery workflow so that it (once again) can publish a release candidate.

Closes #1135

Tested publishing to PSGallery.

[x] This PR has an informative and human-readable title.
[x] PR targets the correct parent branch (e.g., main or release-name) for merge.
[x] Changes are limited to a single goal - eschew scope creep!
[x] Changes are sized such that they do not touch excessive number of files.
[x] These code changes follow the ScubaGear content style guide.
[x] Related issues these changes resolve are linked preferably via [closing keywords]- [ ] All relevant type-of-change labels added.
[x] All relevant project fields are set.
[x] All automated checks (e.g., linting, static analysis, unit/smoke tests) passed.

[x] PR passed smoke test check.
[x] Feature branch has been rebased against changes from parent branch, as needed
[x] Resolved all merge conflicts on branch
[x] Notified merge coordinator that PR is ready for merge via comment mention

[ ] Feature branch deleted after merge to clean up repository.
[ ] Verified that all checks pass on parent branch (e.g., main or release-name) after merge.