Add CI workflow for Repairnator (#1272)

Author: monperrus

.ci/ci-before.sh

@@ -0,0 +1,28 @@
+name: Continuous Integration for Repairnator
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  repairnator-core:
+    name: repairnator-core
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up JDK
+      uses: actions/setup-java@v4
+      with:
+        java-version: '17'
+        distribution: 'temurin'
+        cache: 'maven'
+
+    - name: Run Test Script
+      run: |
+        mvn install -B
+
+