fix build: java-version for nebula

Author: Sunjeet

.github/workflows/nebula-publish.yml

@@ -17,7 +17,7 @@ jobs:
       - name: Setup jdk 8
         uses: actions/setup-java@v5
         with:
-          java-version: 1.8
+          java-version: 8
           distribution: 'zulu'
       - uses: actions/cache@v5
         id: gradle-cache