chore: Add docker build CI

.github/workflows/test.yaml

@@ -20,15 +20,21 @@ jobs:
       id-token: "write"
       actions: "read"
     steps:
-      - name: Set up Go 1.x
-        uses: actions/setup-go@v3
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/setup-go@3041bf56c941b39c61721a86cd11f3bb1338122a # v5.2.0
         with:
-          go-version: ^1.21
+          go-version-file: "go.mod"
       - name: Configure git for private modules
         env:
           GIT_AUTH_TOKEN: ${{ secrets.BOT_REPO_TOKEN }}
         run: git config --global url."https://speakeasybot:${GIT_AUTH_TOKEN}@github.com".insteadOf "https://github.com"
-      - name: Check out code
-        uses: actions/checkout@v3
       - name: Test
         run: go test -v ./...
+  docker-build:
+    name: Docker Build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: docker/build-push-action@b32b51a8eda65d6793cd0494a773d4f6bcef32dc # v6.11.0
+        with:
+          push: false