Add CI job (#55)

Author: lucacasonato

.github/workflows/build.yml

@@ -0,0 +1,20 @@
+name: Build
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - uses: actions/checkout@v4
+    
+    - name: Setup Deno
+      uses: denoland/setup-deno@v2
+    
+    - name: Build
+      run: deno task build