ci: add test workflow

Author: EndBug

.github/workflows/test.yml

@@ -0,0 +1,22 @@
+name: Test
+on:
+  push:
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  build:
+    name: Test build
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - run: npm i
+      - run: npm run build
+
+  lint:
+    name: Check linting
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - run: npm i
+      - run: npm run lint

package.json

@@ -6,6 +6,7 @@
   "scripts": {
     "build": "ncc build src/main.ts --minify --out lib",
     "watch": "ncc build src/main.ts --watch --out lib",
+    "lint": "eslint --ext .ts src",
     "lint:fix": "eslint --ext .ts --fix src",
     "all-contributors-badge": "ts-node scripts/all-contributors-badge",
     "changelog": "ts-node scripts/changelog.ts",