update to latest gh actions

.github/workflows/discord.yml

@@ -9,10 +9,10 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4.1.1
+      uses: actions/checkout@v4
       
     - name: Set up Java JDK 17
-      uses: actions/setup-java@v3.13.0
+      uses: actions/setup-java@v4
       with:
         distribution: 'adopt'
         java-version: '17'

.github/workflows/publish.yml

@@ -13,10 +13,10 @@ jobs:
     if: contains(github.event.head_commit.message, '[ci skip]') == false
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: Set up JDK 17
-        uses: actions/setup-java@v3.13.0
+        uses: actions/setup-java@v4
         with:
           distribution: 'adopt'
           java-version: '17'