[CI] Add github actions job to quickly find site build errors without relying on netlify

Author: jesserockz

.github/workflows/ci.yml

@@ -0,0 +1,42 @@
+name: CI
+
+on:
+  pull_request:
+    types: [opened, reopened, synchronize]
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Install pagefind
+        uses: jaxxstorm/action-install-gh-release@6096f2a2bbfee498ced520b6922ac2c06e990ed2 # v2.1.0
+        with:
+          repo: cloudcannon/pagefind
+
+      - name: Checkout
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+
+      - name: Set up Hugo
+        uses: peaceiris/actions-hugo@75d2e84710de30f6ff7268e08f310b60ef14033f # v3.0.0
+        with:
+          hugo-version: 'latest'
+          extended: true
+
+      - name: Set up Python 3.12
+        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        with:
+          python-version: 3.12
+
+      - name: Install Python dependencies
+        run: pip install -r requirements_test.txt
+
+      - name: Run production build
+        run: make production