update github actions and add build

Author: joaotonaco

.github/workflows/main.yml

@@ -2,17 +2,39 @@ name: CI
 on:
   push:
     branches:
-      - "**"
+      - main
+  pull_request:
+    branches:
+      - main
 
 jobs:
   build:
     runs-on: ubuntu-latest
+
+    permissions:
+      contents: write
+
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-node@v3
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
         with:
-          node-version: 18.x 
+          node-version: 20.x
           cache: "npm"
 
-      - run: npm install --no-package-lock
-      - run: npm run build
+      - name: Install dependencies
+        run: npm install --no-package-lock
+
+      - name: Build
+        run: npm run build
+
+      - name: Override gitignore
+        run: |
+          echo "node_modules" > .gitignore
+          echo ".npm" >> .gitignore
+
+      - uses: stefanzweifel/git-auto-commit-action@v5
+        with:
+          commit_message: "build: ${{ github.sha }}"
+          branch: build
+          commit_options: "--no-verify"