chore: add github workflows for auto format

.github/workflows/format.yml

@@ -0,0 +1,36 @@
+name: format
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  format:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Setup Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: '^1.19'
+
+      - name: Format with gofmt
+        run: go fmt .
+
+      - name: Commit changes
+        uses: stefanzweifel/git-auto-commit-action@v4
+        with:
+          commit_message: "style(format): run gofmt"
+
+      - name: Install goimports
+        run: go install golang.org/x/tools/cmd/goimports@latest
+
+      - name: Format with goimports
+        run: goimports -w .
+
+      - name: Commit changes
+        uses: stefanzweifel/git-auto-commit-action@v4
+        with:
+          commit_message: "style(format): run goimports"