Bump pycryptodome from 3.11.0 to 3.19.1 in /test_server

Bumps [pycryptodome](https://github.com/Legrandin/pycryptodome) from 3.11.0 to 3.19.1.
- [Release notes](https://github.com/Legrandin/pycryptodome/releases)
- [Changelog](https://github.com/Legrandin/pycryptodome/blob/master/Changelog.rst)
- [Commits](Legrandin/pycryptodome@v3.11.0...v3.19.1)

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

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

test_server/requirements.txt

@@ -1,5 +1,5 @@
 Flask==2.3.2
 gevent==23.9.1
-pycryptodome==3.11.0
+pycryptodome==3.19.1
 pytest==6.2.5
 pytest-cov==3.0.0