Test on yanked pytest 8.1.0

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 isolated_build = true
-envlist = py{38,39,310,311,312}-pytest{5,6,7,8},lint
+envlist = py{38,39,310,311,312}-pytest{5,6,7,8,810,81},lint
 
 [testenv]
 allowlist_externals = poetry
@@ -9,7 +9,10 @@ commands =
     pytest5: pip install "pytest<6"
     pytest6: pip install "pytest>=6,<7"
     pytest7: pip install "pytest>=7,<8"
-    pytest8: pip install "pytest>=8,<9"
+    pytest8: pip install "pytest>=8,<8.1"
+    # pytest 8.1.0 was yanked, but their "broken behaviour" will comeback soon
+    pytest810: pip install "pytest==8.1.0"
+    pytest81: pip install "pytest>=8.1,<9"
     # Disable ruff plugin to generate better coverage results
     poetry run pytest -p no:ruff -vvv --cov --cov-append --cov-report term --cov-report xml {posargs}