Merge pull request #43 from ngrok/stacks/ci

feat(ci): Add CI tests

.github/workflows/ci.yml

@@ -0,0 +1,26 @@
+name: CI
+on:
+  push:
+  pull_request:
+
+jobs:
+  test:
+    name: "Test (Go: ${{matrix.go}})"
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    strategy:
+      fail-fast: false
+      matrix:
+        go:
+        - '1.21'
+        - '1.22'
+        - '1.23'
+    steps:
+    - uses: actions/checkout@v4
+    - uses: actions/setup-go@v5
+      with:
+        go-version: ${{ matrix.go }}
+    - name: Build
+      run: make build
+    - name: Test
+      run: make test