Configure GitHub Actions

Author: pivovarit

.github/CODEOWNERS

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+* @pivovarit

.github/dependabot.yml

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+version: 2
+updates:
+  - package-ecosystem: "maven"
+    target-branch: "main"
+    directory: "/"
+    schedule:
+      interval: "daily"
+      time: "02:00"
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    target-branch: "main"
+    schedule:
+      interval: "daily"
+      time: "02:00"

.github/workflows/build.yml

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+name: ci
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        java: [ '8', '11', '17', '21', '24']
+        architecture: [ 'x64' ]
+      fail-fast: false
+    name: Build with JDK ${{ matrix.java }} on ${{ matrix.architecture }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup JDK
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: ${{ matrix.java }}
+          architecture: ${{ matrix.architecture }}
+          cache: 'maven'
+
+      - name: Build with Maven
+        run: mvn test