change: replace yarn with npm.

Author: cangzhang

.github/workflows/release.yml

@@ -22,12 +22,9 @@ jobs:
         GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       shell: pwsh
       run: |
-        set NODE_OPTIONS=--openssl-legacy-provider
         $sha = (git rev-parse --short HEAD)
-        npm i -g yarn
-        yarn set version berry
-        yarn --silent
-        $env:SHORT_SHA=$sha; yarn release
+        npm install
+        $env:SHORT_SHA=$sha; npm run release
 
     - name: Move artifacts
       id: vars

.github/workflows/test.yml

@@ -19,16 +19,13 @@ jobs:
     - uses: actions/checkout@v2
     - uses: actions/setup-node@v2
       with:
-        node-version: '16.10.0'
+        node-version: '16'
 
     - name: Build
       run: |
-        set NODE_OPTIONS=--openssl-legacy-provider
         $sha = (git rev-parse --short HEAD)
-        npm i -g yarn
-        yarn set version berry
-        yarn install --silent
-        $env:SHORT_SHA=$sha; yarn build:ci
+        npm install
+        $env:SHORT_SHA=$sha; npm run build:ci
 
     - name: Move artifacts
       id: vars

.husky/pre-commit

@@ -1,4 +1,4 @@
 #!/bin/sh
 . "$(dirname "$0")/_/husky.sh"
 
-npx lint-staged
+npm test

README.md

@@ -59,25 +59,24 @@ Check https://github.com/cangzhang/champ-r/wiki/FAQ
 
 ### Prerequisite
 
-- [Node.js](https://nodejs.org/en/) >= 10
-- [yarn](https://classic.yarnpkg.com/lang/en/)
+- [Node.js](https://nodejs.org/en/) >= 14
 
 ### Install dependencies
 
 ```console
-yarn
+npm install
 ```
 
 ### Start
 
 ```console
-yarn start
+npm run start
 ```
 
 ### Build
 
 ```console
-yarn build:local
+npm run build:local
 ```