build(pytest): set import mode to importlib

Use the importlib import mode for pytest to avoid issues with sys.path manipulation and improve reliability of test imports. This mode is recommended for projects with complex package structures.

Author: liblaf

template/pyproject.toml.jinja

@@ -91,6 +91,7 @@ extends = ".config/linters/pyrightconfig.json"
 addopts = [
   "--doctest-modules",
   "--hypothesis-show-statistics",
+  "--import-mode=importlib",
   "--showlocals",
   "--strict-config",
   "--strict-markers",