chore(deps): update dependency pytest to v9 [security]

Author: renovate[bot]

requirements.txt

@@ -78,7 +78,7 @@ pycryptodome==3.19.0
     # via plxscripting (pyproject.toml)
 pygments==2.16.1
     # via ipython
-pytest==7.4.3
+pytest==9.0.3
     # via plxscripting (pyproject.toml)
 python-dateutil==2.8.2
     # via jupyter-client