Bump pyjwt from 1.5.3 to 2.4.0 in /nipap

Bumps [pyjwt](https://github.com/jpadilla/pyjwt) from 1.5.3 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@1.5.3...2.4.0)

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

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

nipap/requirements.txt

@@ -23,4 +23,4 @@ pytz==2021.1
 pysqlite==2.8.3
 tornado==5.1
 wsgiref==0.1.2
-pyjwt==1.5.3
+pyjwt==2.4.0