Override GITHUB_REF_NAME

Fixes #121

Author: jeroen

action.yml

@@ -52,6 +52,8 @@ runs:
     - name: Build site
       run: rotemplate::build_ropensci_docs("${{ inputs.subdir || '.' }}", destination = "${{ inputs.destination }}")
       shell: Rscript {0}
+      env:
+        GITHUB_REF_NAME: HEAD
 
     - name: "Save website into artifact"
       uses: actions/upload-artifact@v4