chore: add publish workflow

.github/workflows/publish.yml

@@ -0,0 +1,31 @@
+name: Publish to NPM
+on:
+  release:
+    types: [created]
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [18.x]
+        # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+
+    - run: npm install -g lerna
+    - run: yarn install
+    - run: cd packages/lib
+    - run: yarn build
+
+    - name: Publish package on NPM
+      run: npm publish --access=public
+      env:
+        NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}