Replace Travis with Github actions

Two workflows have been added,

  * PHP build - Runs tests on version 7.2, 7.3, also runs phpcs
  * Node.js build - Runs tests on version 8.x, 10.x, 12.x, also
    runs ESLint

Bug: T218639

.github/workflows/node.yml

@@ -0,0 +1,27 @@
+name: Node.js build
+on:
+  [pull_request, push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-v: [8.x, 10.x, 12.x]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Use Node.js ${{ matrix.node-v }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-v }}
+
+      - name: Install package.json dependencies
+        run: npm install
+
+      - name: Run Node.js test suite
+        run: npm test
+
+      - name: Run linting
+        run: npm run lint

.github/workflows/php.yml

@@ -0,0 +1,22 @@
+name: PHP build
+on:
+  [pull_request, push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        php: [7.2, 7.3]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Install dependencies
+        run: composer install --prefer-dist --no-interaction --ansi
+
+      - name: Run tests
+        run: php${{ matrix.php }} ./vendor/bin/phpunit tests/php/*
+
+      - name: Running phpcs
+        run: composer run-script cs

.travis.yml

@@ -1,5 +0,0 @@
-language: node_js
-node_js:
-  - 8
-sudo: false
-

composer.json

@@ -2,18 +2,26 @@
 	"name": "wikimedia/language-data",
 	"description": "CLDR based language data and utilities.",
 	"keywords": [
-        "cldr", "cldr-data", "internationalization", "localization", "l10n"
+		"cldr",
+		"cldr-data",
+		"internationalization",
+		"localization",
+		"l10n"
 	],
 	"license": "GPL-2.0-or-later",
-    "authors": [{
+	"authors": [
+		{
 			"name": "Santhosh Thottingal",
 			"email": "santhosh.thottingal@gmail.com"
-    }, {
+		},
+		{
 			"name": "Amir Aharoni"
-    }, {
+		},
+		{
 			"name": "Niklas Laxström",
 			"email": "niklas.laxstrom@gmail.com"
-    }],
+		}
+	],
 	"type": "library",
 	"require": {
 		"php": ">=7.2"
@@ -33,6 +41,7 @@
 	},
 	"scripts": {
 		"fix": "phpcbf",
+		"cs": "phpcs -p",
 		"test": [
 			"composer validate --no-interaction",
 			"phpunit tests/php/*",

package.json

@@ -36,6 +36,7 @@
   },
   "license": "GPL-2.0-or-later",
   "scripts": {
-    "test": "mocha tests/js/*.js"
+    "test": "mocha tests/js/*.js",
+    "lint": "eslint src/*.js"
   }
 }