Fix the test suite

Seems that one of the latest memray versions has broken the test suite
because we don't track Cython calls anymore. Fix this by not matching
the Cython file but just the function itself.

Author: pablogsal

tests/test_pytest_memray.py

@@ -181,12 +181,12 @@ def test_bar():
 
     assert "results for test_memray_report.py::test_foo" in output
     assert "Total memory allocated: 2.0KiB" in output
-    assert "valloc:src/memray/_memray_test_utils.pyx" in output
+    assert "valloc:" in output
     assert "-> 2.0KiB" in output
 
     assert "results for test_memray_report.py::test_bar" in output
     assert "Total memory allocated: 1.0KiB" in output
-    assert "valloc:src/memray/_memray_test_utils.pyx" in output
+    assert "valloc:" in output
     assert "-> 1.0KiB" in output
 
 
@@ -223,12 +223,12 @@ def test_bar():
 
     assert "results for test_memray_report.py::test_foo" not in output
     assert "Total memory allocated: 2.0KiB" not in output
-    assert "valloc:src/memray/_memray.pyx" not in output
+    assert "valloc:" not in output
     assert "-> 2.0KiB" not in output
 
     assert "results for test_memray_report.py::test_bar" not in output
     assert "Total memory allocated: 1.0KiB" not in output
-    assert "valloc:src/memray/_memray.pyx" not in output
+    assert "valloc:" not in output
     assert "-> 1.0KiB" not in output