ci: add an action for tests

.github/workflows/test.yml

@@ -0,0 +1,28 @@
+name: Test
+
+on:
+  pull_request:
+    paths:
+      - 'packages'
+      - 'test'
+      - '.github/workflows/test.yml'
+
+jobs:
+  test:
+    name: Check that packages compiles, lint and tests pass
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out Git repository
+        uses: actions/checkout@v2
+      - name: Set up Node.js
+        uses: actions/setup-node@v1
+        with:
+          node-version: 20
+      - name: Install dependencies
+        run: npm ci
+      - name: Build
+        run: npm run build:packages
+      - name: Lint
+        run: npm run lint
+      - name: Test
+        run: npm test

package.json

@@ -10,7 +10,8 @@
 	],
 	"scripts": {
 		"dev": "npx gulp -f gulpfile.cjs",
-		"build:all": "export NODE_ENV=production && npm run build --workspace=@mlut/core && npm run build --workspace=mlut && npx gulp -f gulpfile.cjs build",
+		"build:packages": "npm run build --workspace=@mlut/core && npm run build --workspace=mlut && npx gulp -f gulpfile.cjs sass",
+		"build:docs": "npx gulp -f gulpfile.cjs sass-mk-doc",
 		"build:mlut": "npm run build --workspace=mlut && npx gulp -f gulpfile.cjs sass",
 		"build:core": "npm run build --workspace=@mlut/core",
 		"lint": "npx eslint packages/*/src/ && npx stylelint packages/*/src --ip packages/core/src/sass/tools/mixins/base/_mk-ar.scss",