Bump @types/express from 4.17.20 to 4.17.21

Bumps [@types/express](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/express) from 4.17.20 to 4.17.21.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/express)

---
updated-dependencies:
- dependency-name: "@types/express"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

yarn.lock

@@ -899,9 +899,9 @@
     "@types/send" "*"
 
 "@types/express@^4.17.13":
-  version "4.17.20"
-  resolved "https://registry.yarnpkg.com/@types/express/-/express-4.17.20.tgz#e7c9b40276d29e38a4e3564d7a3d65911e2aa433"
-  integrity sha512-rOaqlkgEvOW495xErXMsmyX3WKBInbhG5eqojXYi3cGUaLoRDlXa5d52fkfWZT963AZ3v2eZ4MbKE6WpDAGVsw==
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/@types/express/-/express-4.17.21.tgz#c26d4a151e60efe0084b23dc3369ebc631ed192d"
+  integrity sha512-ejlPM315qwLpaQlQDTjPdsUFSc6ZsP4AN6AlWnogPjQ7CVi7PYF3YVz+CY3jE2pwYf7E/7HlDAN0rV2GxTG0HQ==
   dependencies:
     "@types/body-parser" "*"
     "@types/express-serve-static-core" "^4.17.33"