Add simple CI workflow (only building)

.github/workflows/ci.yml

@@ -0,0 +1,21 @@
+name: CI
+
+on:
+  push:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          # Allow goreleaser to access older tag information.
+          fetch-depth: 0
+      - uses: actions/setup-go@v4
+        with:
+          go-version-file: 'go.mod'
+          cache: true
+      - name: Build for single target with GoReleaser
+        uses: goreleaser/goreleaser-action@336e29918d653399e599bfca99fadc1d7ffbc9f7 # v4.3.0
+        with:
+          args: build --clean --snapshot --single-target