Update dependency pytest to v8 (#71)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

poetry.lock

@@ -33,7 +33,7 @@ ipdb = "^0.13.13"
 ipython = "*"
 
 [tool.poetry.group.tests.dependencies]
-pytest = "^7.4.0"
+pytest = "^8.0.0"
 pytest-testconfig = "^0.2.0"
 
 [tool.poetry-dynamic-versioning.substitution]