ci: deploy to npm action

.github/workflows/deploy-npm.yml

@@ -0,0 +1,82 @@
+name: Deploy to NPM
+
+on:
+  workflow_dispatch:
+  pull_request:
+    branches:
+      - master
+    types:
+      - closed
+
+permissions:
+  id-token: write # allows the JWT to be requested from GitHub's OIDC provider
+  contents: read # This is required for actions/checkout
+
+jobs:
+  deploy-tag:
+    name: Deploy to NPM
+    runs-on: ubuntu-latest
+    if: startsWith(github.ref, 'refs/tags/v') || startsWith(github.ref, 'refs/heads/master') || github.event.pull_request.merged == true
+    steps:
+      - name: Checkout source branch
+        uses: actions/checkout@v3
+
+      - name: Setup Node
+        uses: actions/setup-node@v3
+        with:
+          node-version-file: '.nvmrc'
+          cache: 'npm'
+
+      - name: Build files
+        env:
+          HUSKY: 0
+        run: |
+          npm ci
+          npm run build
+
+      - name: Publish package to NPM
+        env:
+          HUSKY: 0
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+        run: |
+          npm set //registry.npmjs.org/:_authToken=${{ secrets.NPM_TOKEN }}
+          cd lib
+          npm publish
+
+      - name: Get new version number
+        run: |
+          current_version=$(jq -r .version package.json)
+          echo "CURRENT_VERSION_VALUE=$current_version" >> $GITHUB_ENV
+          echo "DATE=$(date)" >> $GITHUB_ENV
+
+      - name: Send message to Slack channel
+        id: slack
+        uses: slackapi/slack-github-action@v1.23.0
+        env:
+          SLACK_BOT_TOKEN: ${{ secrets.SLACK_BOT_TOKEN }}
+          PROJECT_NAME: 'Node SDK'
+          NPM_PACKAGE_URL: 'https://www.npmjs.com/package/@rudderstack/rudder-sdk-node'
+        with:
+          channel-id: ${{ secrets.SLACK_RELEASE_CHANNEL_ID }}
+          payload: |
+            {
+              "blocks": [
+                {
+                  "type": "header",
+                  "text": {
+                    "type": "plain_text",
+                    "text": "New release: ${{ env.PROJECT_NAME }}"
+                  }
+                },
+                {
+                  "type": "divider"
+                },
+                {
+                  "type": "section",
+                  "text": {
+                    "type": "mrkdwn",
+                    "text": "*Release: <${{ env.NPM_PACKAGE_URL }}|${{ env.CURRENT_VERSION_VALUE }}>*\n${{ env.DATE }}"
+                  }
+                }
+              ]
+            }