refactor: implement generic optional import mechanisms

this project is actively using optional imports, which leads to
duplicate handling here and there. This commit implements logic in
special method to reduce complexity and simplify tests paths

tools/pytest_plugins/ahriman_fixtures/__init__.py

@@ -117,36 +117,12 @@ def get_package_status_extended(package: Package) -> dict[str, Any]:
     return {"status": BuildStatus().view(), "package": package.view()}
 
 
-def import_error(package: str, components: list[str], mocker: MockerFixture) -> MagicMock:
-    """
-    mock import error
-
-    Args:
-        package(str): package name to import
-        components(list[str]): component to import if any (e.g. from ... import ...)
-        mocker(MockerFixture): mocker object
-
-    Returns:
-        MagicMock: mocked object
-    """
-    import builtins
-    _import = builtins.__import__
-
-    # pylint: disable=redefined-builtin
-    def test_import(name: str, globals: Any, locals: Any, from_list: list[str], level: Any):
-        if name == package and (not components or any(component in from_list for component in components)):
-            raise ImportError
-        return _import(name, globals, locals, from_list, level)
-
-    return mocker.patch.object(builtins, "__import__", test_import)
-
-
 @pytest.hookimpl(trylast=True)
 def pytest_configure() -> None:
     """
     register helpers after pytest-helpers-namespace has initialized
     """
-    for helper in (anyvar, get_package_status, get_package_status_extended, import_error):
+    for helper in (anyvar, get_package_status, get_package_status_extended):
         pytest.helpers.register(helper)