update the Validate Examples Action

Update the checkout, setup-node and setup-java actions to the latest major version

.github/workflows/main.yml

@@ -24,12 +24,12 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
       - uses: actions/checkout@v4
-      - uses: actions/setup-node@v3
+      - uses: actions/setup-node@v4
         with:
           node-version: '20'
 
@@ -43,7 +43,7 @@ jobs:
       
       # Install Java runtime (only needed if you want to run the offical HL7 Java validator)
       - name: Setup Java JDK
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@v4
         with:
           distribution: 'microsoft'
           java-version: '17'