Update publish.yml

Author: SpaceWalkerRS

.github/workflows/publish.yml

@@ -2,15 +2,15 @@ name: Release
 on: [workflow_dispatch] # Manual trigger
 jobs:
   build:
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-24.04
     steps:
       - name: checkout repository
         uses: actions/checkout@v4
 
       - uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
-          java-version: '17'
+          java-version: '21'
 
       - name: validate gradle wrapper
         uses: gradle/actions/wrapper-validation@v4