Migrate CI to GitHub Actions

Author: fwcd

.github/workflows/build.yml

@@ -0,0 +1,17 @@
+name: Build
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        java: ['11']
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup JDK
+        uses: actions/setup-java@v1
+        with:
+          java-version: ${{ matrix.java }}
+      - name: Build
+        run: ./gradlew :adapter:build

.github/workflows/deploy.yml

@@ -0,0 +1,36 @@
+name: Deploy
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup JDK
+        uses: actions/setup-java@v1
+        with:
+          java-version: 11
+      - name: Build distribution
+        run: ./gradlew :adapter:distZip
+      - name: Create release
+        uses: actions/create-release@v1
+        id: create_release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: Version ${{ github.ref }}
+          draft: false
+          prerelease: false
+      - name: Upload asset
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: ./adapter/build/distributions/adapter.zip
+          asset_name: adapter.zip
+          asset_content_type: application/zip

.travis.yml

@@ -1,7 +1,7 @@
 # Kotlin Debug Adapter
 
 [![Release](https://img.shields.io/github/release/fwcd/kotlin-debug-adapter)](https://github.com/fwcd/kotlin-debug-adapter/releases)
-[![Build Status](https://travis-ci.org/fwcd/kotlin-debug-adapter.svg?branch=master)](https://travis-ci.org/fwcd/kotlin-debug-adapter)
+[![Build](https://github.com/fwcd/kotlin-debug-adapter/workflows/Build/badge.svg)](https://github.com/fwcd/kotlin-debug-adapter/actions)
 [![Downloads](https://img.shields.io/github/downloads/fwcd/kotlin-debug-adapter/total)](https://github.com/fwcd/kotlin-debug-adapter/releases)
 [![Chat](https://img.shields.io/badge/chat-on%20discord-7289da)](https://discord.gg/cNtppzN)