Create ci.yml

Add CI testing workflow

.github/workflows/ci.yml

@@ -0,0 +1,33 @@
+on:
+  push:
+    branches:
+      - '**'
+  pull_request:
+    branches:
+      - '**'
+
+name: Test
+jobs:
+  test:
+    strategy:
+      matrix:
+        go-version: [1.20.x, 1.21.x]
+        os: [ubuntu-latest, windows-latest]
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Install Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ matrix.go-version }}
+          check-latest: true
+          cache: false
+
+      - uses: actions/checkout@v3
+
+      - name: Build
+        run: go build -v ./...
+
+      - name: Test
+        run: go test -v ./...