Bump express from 4.19.2 to 4.20.0

Bumps [express](https://github.com/expressjs/express) from 4.19.2 to 4.20.0.
- [Release notes](https://github.com/expressjs/express/releases)
- [Changelog](https://github.com/expressjs/express/blob/master/History.md)
- [Commits](expressjs/express@4.19.2...4.20.0)

---
updated-dependencies:
- dependency-name: express
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

grafast/grafserv/package.json

@@ -115,7 +115,7 @@
     "@types/koa": "^2.13.8",
     "@types/koa-bodyparser": "^4.3.10",
     "@whatwg-node/fetch": "^0.9.10",
-    "express": "^4.19.2",
+    "express": "^4.20.0",
     "fastify": "^4.22.1",
     "grafast": "workspace:^",
     "graphql-http": "^1.22.0",

graphile-build/graphile-build-pg/package.json

@@ -84,7 +84,7 @@
     "@types/jest": "^29.5.4",
     "@types/jsonwebtoken": "^9.0.2",
     "chalk": "^4.1.2",
-    "express": "^4.19.2",
+    "express": "^4.20.0",
     "express-graphql": "^0.12.0",
     "fastify": "^4.22.1",
     "fastify-static": "^4.7.0",