feat: update master express openapi spec & ci job

.github/workflows/pull_request.yaml

@@ -18,6 +18,35 @@ jobs:
     secrets:
       fossa-api-key: ${{ secrets.FOSSA_API_KEY }}
 
+  check-openapi-drift:
+    name: Check OpenAPI spec drift
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '22.1.0'
+          cache: 'npm'
+
+      - name: Cache dependencies
+        uses: actions/cache@v5
+        id: node-modules-cache
+        with:
+          path: '**/node_modules'
+          key: ${{ runner.os }}-modules-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-modules-
+
+      - name: Install dependencies
+        if: steps.node-modules-cache.outputs.cache-hit != 'true'
+        run: npm ci
+
+      - name: Check OpenAPI spec drift
+        run: npm run check:openapi:masterExpress
+
   check-dependency-changes:
     name: Check for dependency changes
     runs-on: ubuntu-latest