Chore: Adjust ci workflow to auto publish

.github/workflows/ci.yml

@@ -1,21 +1,54 @@
-name: Run Tests
+name: CI and Conditional Publish
 
 on: [push, pull_request]
 
 jobs:
-  build:
+  build-and-test:
     runs-on: ubuntu-latest
 
-    strategy:
-      matrix:
-        node-version: [16.x]
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Use Node.js 16.x
+        uses: actions/setup-node@v2
+        with:
+          node-version: '16'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build the package
+        run: npm run build
 
+      - name: Run tests
+        run: npm run test
+
+  publish:
+    needs: build-and-test
+    runs-on: ubuntu-latest
+    if: github.ref == 'refs/heads/main' && github.event_name == 'push'
     steps:
       - uses: actions/checkout@v2
-      - name: Use Node.js ${{ matrix.node-version }}
+
+      - name: Check if version changed
+        id: version-check
+        uses: EndBug/version-check@v1
+        with:
+          file: 'package.json'
+
+      - name: Set up Node.js
+        if: steps.version-check.outputs.changed == 'true'
         uses: actions/setup-node@v2
         with:
-          node-version: ${{ matrix.node-version }}
-      - run: npm cache clean --force
-      - run: npm ci
-      - run: npm run test
+          node-version: '16'
+          registry-url: 'https://registry.npmjs.org/'
+
+      - name: Install dependencies
+        if: steps.version-check.outputs.changed == 'true'
+        run: npm ci
+
+      - name: Publish to npm
+        if: steps.version-check.outputs.changed == 'true'
+        run: npm publish
+        env:
+          NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}