🔧 chore(workflow): update java-version to '8' in gradle.yml

.github/workflows/gradle.yml

@@ -16,7 +16,7 @@ jobs:
         uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
-          java-version: 1.8
+          java-version: '8'
       - uses: actions/cache@v4
         with:
           path: |