Run tests on all Java LTS versions (#2153)

Author: stonesmi

.github/workflows/test-server.yml

@@ -13,6 +13,9 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        java-version: [17, 21, 25]
 
     steps:
       - uses: actions/checkout@v6
@@ -21,16 +24,16 @@ jobs:
         with:
           node-version: "20.x"
 
-      - name: Set up JDK 1.17
+      - name: Set up JDK ${{ matrix.java-version }}
         uses: actions/setup-java@v5
         with:
-          java-version: 17
+          java-version: ${{ matrix.java-version }}
           java-package: jdk
           distribution: temurin
           cache: 'maven'
 
       - name: Make mvnw executable
         run: chmod +x mvnw
 
-      - name: Build with Maven
+      - name: Build with Maven (Java ${{ matrix.java-version }})
         run: ./mvnw -B -ntp verify