Basic CI workflow

.github/workflows/ci.yaml

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+name: Java CI with Gradle
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+  workflow_dispatch:
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up JDK 21
+      uses: actions/setup-java@v4
+      with:
+        java-version: '21'
+        distribution: 'temurin'
+
+    # Configure Gradle for optimal use in GiHub Actions, including caching of downloaded dependencies.
+    # See: https://github.com/gradle/actions/blob/main/setup-gradle/README.md
+    - name: Setup Gradle
+      uses: gradle/actions/setup-gradle@417ae3ccd767c252f5661f1ace9f835f9654f2b5 # v3.1.0
+
+    - name: Build with Gradle Wrapper
+      run: ./gradlew build
+
+  dependency-submission:
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up JDK 21
+      uses: actions/setup-java@v4
+      with:
+        java-version: '21'
+        distribution: 'temurin'
+
+    # Generates and submits a dependency graph, enabling Dependabot Alerts for all project dependencies.
+    # See: https://github.com/gradle/actions/blob/main/dependency-submission/README.md
+    - name: Generate and submit dependency graph
+      uses: gradle/actions/dependency-submission@417ae3ccd767c252f5661f1ace9f835f9654f2b5 # v3.1.0