[CI] Add integration test workflow

Author: slashmo

.github/workflows/integration-test.yaml

@@ -0,0 +1,35 @@
+name: Integration Test
+on:
+  workflow_call:
+  push:
+    branches: [main]
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}-integration-test
+  cancel-in-progress: true
+jobs:
+  integration-test:
+    name: Integration Test
+    runs-on: ubuntu-22.04
+    timeout-minutes: 10
+    strategy:
+      fail-fast: false
+      matrix:
+        toolchain: [latest]
+    steps:
+      - name: Install Swift
+        uses: vapor/swiftly-action@v0.1
+        with:
+          toolchain: ${{ matrix.toolchain }}
+        env:
+          SWIFTLY_GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Checkout
+        uses: actions/checkout@v4.2.2
+      - name: Resolve Swift dependencies
+        run: swift package resolve
+        working-directory: ./IntegrationTests
+      - name: Start Services
+        run: docker compose up -d
+        working-directory: ./IntegrationTests
+      - name: Run Integration Tests
+        run: swift test --parallel
+        working-directory: ./IntegrationTests