chore: add codeowners and pull request workflow

.github/CODEOWNERS

@@ -0,0 +1,2 @@
+# These owners will be the default owners for everything in
+*       @siumauricio

.github/workflows/pull-request.yml

@@ -0,0 +1,25 @@
+name: Pull request
+on:
+  pull_request:
+    branches:
+      - main 
+jobs:
+  build:
+    runs-on: ubuntu-20.04
+    strategy:
+      matrix:
+        node-version: [18.18.0]
+    steps:
+    - uses: actions/checkout@v3
+    - uses: pnpm/action-setup@v3
+      with:
+        version: 8
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v3
+      with:
+        node-version: ${{ matrix.node-version }}
+        cache: 'pnpm'
+    - name: Install dependencies
+      run: pnpm install
+    - name: Run Build
+      run: pnpm build