chore: add check action

.github/workflows/format.yml

@@ -0,0 +1,26 @@
+name: Swift Format Check
+
+on: [pull_request]
+
+jobs:
+  format-check:
+    name: Swift Format Check
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - uses: swift-actions/setup-swift@v1
+        with:
+          swift-version: 5.8
+
+      - name: Install Swift Format
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libssl-dev
+          swift package install swift-format --force
+
+      - name: Run Swift Format Check
+        run: |
+          swift-format lint ./Sources -srp