Bump the pip group across 1 directory with 4 updates

Bumps the pip group with 4 updates in the /backend directory: [pycryptodome](https://github.com/Legrandin/pycryptodome), [aiohttp](https://github.com/aio-libs/aiohttp), [gunicorn](https://github.com/benoitc/gunicorn) and [black](https://github.com/psf/black).


Updates `pycryptodome` from 3.14.1 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@v3.14.1...v3.19.1)

Updates `aiohttp` from 3.8.4 to 3.9.4
- [Release notes](https://github.com/aio-libs/aiohttp/releases)
- [Changelog](https://github.com/aio-libs/aiohttp/blob/master/CHANGES.rst)
- [Commits](aio-libs/aiohttp@v3.8.4...v3.9.4)

Updates `gunicorn` from 21.0.1 to 22.0.0
- [Release notes](https://github.com/benoitc/gunicorn/releases)
- [Commits](benoitc/gunicorn@21.0.1...22.0.0)

Updates `black` from 22.3.0 to 24.3.0
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](psf/black@22.3.0...24.3.0)

---
updated-dependencies:
- dependency-name: pycryptodome
  dependency-type: direct:production
  dependency-group: pip
- dependency-name: aiohttp
  dependency-type: direct:production
  dependency-group: pip
- dependency-name: gunicorn
  dependency-type: direct:production
  dependency-group: pip
- dependency-name: black
  dependency-type: direct:development
  dependency-group: pip
...

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

Author: dependabot[bot]

backend/dev-requirements.txt

@@ -1,3 +1,3 @@
 pytest==7.1.1
-black==22.3.0
+black==24.3.0
 pre-commit==2.20.0

backend/requirements.txt

@@ -4,11 +4,11 @@ stringcase==1.2.0
 SQLAlchemy==2.0.29
 pytz==2022.1
 PyGithub==1.55
-pycryptodome==3.14.1
-aiohttp==3.8.4
+pycryptodome==3.19.1
+aiohttp==3.9.4
 redis==5.0.3
 python-redis-lock==4.0.0
 psycopg2==2.9.3
 python-dotenv==1.0.1
-gunicorn==21.0.1
+gunicorn==22.0.0
 Flask-SQLAlchemy==3.1.1