fix(deps): update dependency apollo-server-express to v2.21.1

Author: renovate-bot

templates/fullstack/server/package.json

@@ -15,7 +15,7 @@
     "@types/cors": "2.8.10",
     "@types/express": "4.17.11",
     "@types/node": "13.13.45",
-    "apollo-server-express": "2.21.0",
+    "apollo-server-express": "2.21.1",
     "cors": "2.8.5",
     "express": "4.17.1",
     "graphql": "15.5.0",