Refactor Github Action per b/485167538 (#115)

This is a http://go/LSC run by http://go/ghss to automatically refactor
your Github Actions per http://b/485167538.

This is a PR to help you upgrade to the latest standards in Github
Actions.

Please merge this PR to accept the changes. NOTE: if you do not accept
this PR, it may be force merged by the GHSS team. See http://b/485167538
for more details.

Co-authored-by: Ben Knutson <benknutson@google.com>

Author: google-admin

.github/workflows/publish-release-artifacts.yml

@@ -40,9 +40,9 @@ jobs:
 
       - name: Upload Artifacts to Release
         run: |
-          echo Uploading ${{matrix.suffix}} artifact for ${{github.ref_name}}
+          echo Uploading ${{matrix.suffix}} artifact for ${GITHUB_REF_NAME}
           mv keep-sorted${{matrix.extension}} keep-sorted_${{matrix.suffix}}${{matrix.extension}}
-          gh release upload ${{github.ref_name}} keep-sorted_${{matrix.suffix}}${{matrix.extension}} --clobber
+          gh release upload ${GITHUB_REF_NAME} keep-sorted_${{matrix.suffix}}${{matrix.extension}} --clobber
         shell: bash
         env:
           GH_TOKEN: ${{ github.token }}