Bump express from 4.17.1 to 4.17.3

Bumps [express](https://github.com/expressjs/express) from 4.17.1 to 4.17.3.
- [Release notes](https://github.com/expressjs/express/releases)
- [Changelog](https://github.com/expressjs/express/blob/master/History.md)
- [Commits](https://github.com/expressjs/express/compare/4.17.1...4.17.3)

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

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

package.json

@@ -17,11 +17,11 @@
     "build-tailwind": "npx postcss src/tailwind.css -o public/stylesheets/style.css"
   },
   "dependencies": {
-    "@sendgrid/mail": "^8.0.0",
+    "@sendgrid/mail": "^7.4.4",
     "app-root-path": "^3.0.0",
     "axios": "^0.21.3",
     "cookie-parser": "^1.4.5",
-    "express": "^4.17.1",
+    "express": "^4.17.3",
     "express-rate-limit": "^5.2.6",
     "hcaptcha": "^0.0.2",
     "helmet": "^4.6.0",