Update doc_publish.yml

[ekiernan]

Fixes error with documentation deployment

[github-actions]

Remember to squash merge!

[github-actions]

🔍Changelog Validation Results:

basename: missing operand
Try 'basename --help' for more information.
Comparing changelogs for pipelines that differ from the versions on 'origin/develop':
All changelog files are valid for this release.

[github-actions]

🔍Version Validation Results:

Comparing versions and changelogs for pipelines that differ from the versions on 'origin/staging':
All WDLs and changelog files appear to be valid for this release.