There's no matrix when backpublishing

Author: rossabaker

.github/workflows/backpublish.yml

@@ -24,7 +24,6 @@ jobs:
           fetch-depth: 0
 
       - name: Setup Java (zulu@8)
-        if: matrix.java == 'zulu@8'
         uses: actions/setup-java@v4
         with:
           distribution: zulu