Bump pyjwt from 2.1.0 to 2.4.0 in /code

Bumps [pyjwt](https://github.com/jpadilla/pyjwt) from 2.1.0 to 2.4.0.
- [Release notes](https://github.com/jpadilla/pyjwt/releases)
- [Changelog](https://github.com/jpadilla/pyjwt/blob/master/CHANGELOG.rst)
- [Commits](jpadilla/pyjwt@2.1.0...2.4.0)

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

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

Author: dependabot[bot]

code/Pipfile

@@ -9,7 +9,7 @@ requests = "==2.25.1"
 cryptography = "==3.3.2"
 Flask = "==2.0.1"
 certifi = "==2021.5.30"
-PyJWT = "==2.1.0"
+PyJWT = "==2.4.0"
 
 [dev-packages]
 flake8 = "3.9.2"