chore: automate npm publishing (#413)

Author: erezrokah

.github/workflows/release-please.yml

@@ -13,7 +13,19 @@ jobs:
           private-key: ${{ secrets.TOKENS_PRIVATE_KEY }}
           app-id: ${{ secrets.TOKENS_APP_ID }}
       - uses: GoogleCloudPlatform/release-please-action@v2
+        id: release
         with:
           token: ${{ steps.get-token.outputs.token }}
           release-type: node
           package-name: 'netlify-lambda'
+      - uses: actions/checkout@v2
+        if: ${{ steps.release.outputs.release_created }}
+      - uses: actions/setup-node@v2
+        with:
+          node-version: '15'
+          registry-url: 'https://registry.npmjs.org'
+        if: ${{ steps.release.outputs.release_created }}
+      - run: npm publish
+        if: ${{ steps.release.outputs.release_created }}
+        env:
+          NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}

CONTRIBUTING.md

@@ -43,7 +43,4 @@ After submitting the pull request, please make sure the Continuous Integration c
 
 ## Releasing
 
-1. Merge the release PR
-2. Switch to the default branch `git checkout main`
-3. Pull latest changes `git pull`
-4. Publish the package `npm publish`
+Merge the release PR