Enable GitHub Actions.

Author: hrytsenko

Diff for: .github/workflows/build.yml

@@ -0,0 +1,24 @@
+name: Java CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup
+        uses: actions/setup-java@v2
+        with:
+          java-version: '11'
+          distribution: 'adopt'
+          cache: maven
+      - name: Build
+        run: mvn -B verify org.sonarsource.scanner.maven:sonar-maven-plugin:3.9.0.2155:sonar -Dsonar.projectKey=hrytsenko_json-data-spring-boot -Dsonar.organization=hrytsenko -Dsonar.host.url=https://sonarcloud.io -Pcoverage
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}

Diff for: .travis.yml

@@ -1,4 +1,3 @@
-[![Build Status](https://travis-ci.org/hrytsenko/json-data-spring-boot.svg?branch=master)](https://travis-ci.org/hrytsenko/json-data-spring-boot)
 [![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=hrytsenko_json-data-spring-boot&metric=alert_status)](https://sonarcloud.io/dashboard?id=hrytsenko_json-data-spring-boot)
 [![](https://jitpack.io/v/hrytsenko/json-data-spring-boot.svg)](https://jitpack.io/#hrytsenko/json-data-spring-boot)