[master] Added CI script

Author: rcardin

.github/workflows/ci.yml

@@ -0,0 +1,19 @@
+name: assertj-arrow-core
+
+on:
+  push:
+    branches:
+      - '**'
+  pull_request:
+    branches: [ main ]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up JDK 11
+        uses: actions/setup-java@v1
+        with:
+          java-version: 11
+      - name: Build with Maven
+        run: mvn -B package --file pom.xml