Build(deps): Bump send and express

Bumps [send](https://github.com/pillarjs/send) to 0.19.0 and updates ancestor dependency [express](https://github.com/expressjs/express). These dependencies need to be updated together.


Updates `send` from 0.18.0 to 0.19.0
- [Release notes](https://github.com/pillarjs/send/releases)
- [Changelog](https://github.com/pillarjs/send/blob/master/HISTORY.md)
- [Commits](pillarjs/send@0.18.0...0.19.0)

Updates `express` from 4.19.2 to 4.21.0
- [Release notes](https://github.com/expressjs/express/releases)
- [Changelog](https://github.com/expressjs/express/blob/4.21.0/History.md)
- [Commits](expressjs/express@4.19.2...4.21.0)

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

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

package.json

@@ -51,7 +51,7 @@
 		"diff": "5.2.0",
 		"eslint-config-jquery": "3.0.2",
 		"exit-hook": "4.0.0",
-		"express": "4.19.2",
+		"express": "4.21.0",
 		"express-body-parser-error-handler": "1.0.7",
 		"globals": "15.2.0",
 		"grunt": "1.6.1",