Add a CI workflow for build (#7)

Part of https://plan.wireit.in/deepstack/browse/VUL-309/

Co-authored-by: AdityaSalunkhe21 <adityasalunkhe2204@gmail.com>
Reviewed-on: #7

.gitea/workflows/build.yml

@@ -0,0 +1,33 @@
+name: Build
+
+on:
+  push:
+    branches: [master, dev]
+    paths:
+      - 'src/**'
+  pull_request:
+    branches: [master, dev]
+    paths:
+      - 'src/**'
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20.x'
+
+      - name: Enable corepack and yarn
+        run: corepack enable
+
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile
+
+      - name: Build project
+        run: yarn build