*refactor: changed test_session.py to fix security vulnerability

[JTaeuber]

Motivation

There was a security issue found in the code. While at it i discovered that the pre-commit config needed to be updated.

Changes

• fixed https://github.com/caas-team/new-pykube/security/code-scanning/1

• fix: updated precommit config

Tests done

Ran the test locally.

TODO

• I've assigned myself to this PR

[github-actions]

File	Coverage
All files	99%	✅
__init__.py	100%	✅
test_api.py	100%	✅
test_config.py	98%	✅
test_console.py	100%	✅
test_http.py	100%	✅
test_httpclient.py	100%	✅
test_objects.py	100%	✅
test_query.py	100%	✅
test_session.py	100%	✅
test_utils.py	100%	✅
test_watch.py	100%	✅

Minimum allowed coverage is 70%

Generated by 🐒 cobertura-action against 8ce9a6c