Update deps and simplify CI settings (#19)

This change is for housekeeping and does not affect the run-time code.

.github/workflows/nodejs.yml

@@ -3,39 +3,11 @@ name: CI
 on:
   push:
     branches:
-      - master
-      - 'dependabot/**'
+      - main
   pull_request:
     branches:
       - '**'
 
-env:
-  CI: true
-
 jobs:
   lint:
-    name: Lint on Node.js ${{ matrix.node }} and ${{ matrix.os }}
-
-    runs-on: ${{ matrix.os }}
-
-    strategy:
-      matrix:
-        node: [12]
-        os: [ubuntu-latest]
-
-    steps:
-      - uses: actions/checkout@v2
-
-      - name: Use Node.js ${{ matrix.node }}
-        uses: actions/setup-node@v1
-        with:
-          node-version: ${{ matrix.node }}
-
-      - name: Install latest npm
-        run: npm install --global npm@latest
-
-      - name: Install dependencies
-        run: npm ci
-
-      - name: Lint
-        run: npm run lint
+    uses: stylelint/.github/.github/workflows/lint.yml@main

.husky/pre-commit

@@ -0,0 +1,6 @@
+#!/usr/bin/env sh
+[ -n "$CI" ] && exit 0
+
+. "$(dirname -- "$0")/_/husky.sh"
+
+npx --no-install lint-staged