Add GitHub Actions

.github/workflows/build.yml

@@ -0,0 +1,22 @@
+name: Build
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Go 1.21
+        uses: actions/setup-go@v4
+        with:
+          go-version: 1.21
+          cache-dependency-path: go.sum
+
+      - name: Install dependencies
+        run: go get .
+
+      - name: Build
+        run: go build ./...