Fix CD upload step

Author: frankfarzan

.github/workflows/release-create-kpt-functions.yaml

@@ -32,7 +32,7 @@ jobs:
           service_account_email: ${{ secrets.GCP_SA_EMAIL }}
           service_account_key: ${{ secrets.GCP_SA_KEY }}
     - name: Upload binaries
-      run: ./scripts/publish-bins.sh
+      run: ./scripts/publish-bins.sh $GITHUB_REF
     - name: Use Node.js 12.x
       uses: actions/setup-node@v1
       with: