Update CI builds workflow using a matrix configuration

.github/workflows/main.yml

@@ -0,0 +1,34 @@
+name: CI build
+
+on: [push]
+
+jobs:
+  builds:
+    name: ${{ matrix.os }} with Java ${{ matrix.jdk }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        include:
+          - os: ubuntu-latest
+            jdk: 17
+          - os: ubuntu-latest
+            jdk: 21
+          - os: windows-latest
+            jdk: 17
+          - os: windows-latest
+            jdk: 21
+      fail-fast: false
+      max-parallel: 4
+    timeout-minutes: 15
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Setup Java ${{ matrix.jdk }}
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: ${{ matrix.jdk }}
+      - name: Compile
+        run: |
+          ./gradlew clean jar