Pin pytest <9.2 for python >=3.10 to fix pytest-benchmark 4.x breakage (#878)

pytest 9.2.0 removed the private Node._nodeid attribute, which
pytest_benchmark/fixture.py (BenchmarkFixture.__init__) relies on,
causing every benchmark-fixture test to fail with AttributeError.

pytest-benchmark 5.x would fix this but requires Python >=3.9, and this
repo still supports 3.8, so cap pytest at <9.2 on the 9.x line instead
(3.8/3.9 already use pytest ^8.3.4, which is unaffected).

TODO: remove the cap once pytest-benchmark ships a fix compatible with
both pytest 9.2+ and Python 3.8, or once 3.8 support is dropped.

Author: gnufede

poetry.lock

@@ -48,7 +48,9 @@ requests = [
 ]
 pytest = [
     { version = "^8.3.4", optional = true, python = ">=3.8,<3.10" },
-    { version = "^9.0.3", optional = true, python = ">=3.10" },
+    # TODO: Remove the <9.2 cap once pytest-benchmark 4.x is compatible with pytest 9.2+
+    # (pytest 9.2 removed Node._nodeid, which pytest_benchmark/fixture.py relies on).
+    { version = ">=9.0.3,<9.2", optional = true, python = ">=3.10" },
 ]
 pytest-benchmark = { version = "^4.0", optional = true }
 flake8 = { version = "^5.0.4", optional = true }