Hike `testdir.spawn()` timeout on non-linux in CI

tests/devx/conftest.py

@@ -3,8 +3,9 @@
 
 '''
 from __future__ import annotations
-import time
+import platform
 import signal
+import time
 from typing import (
     Callable,
     TYPE_CHECKING,
@@ -33,6 +34,9 @@ if TYPE_CHECKING:
     from pexpect import pty_spawn
 
 
+_non_linux: bool = platform.system() != 'Linux'
+
+
 def pytest_configure(config):
     # register custom marks to avoid warnings see,
     # https://docs.pytest.org/en/stable/how-to/writing_plugins.html#registering-custom-markers
@@ -94,7 +98,10 @@ def spawn(
                 cmd,
                 **mkcmd_kwargs,
             ),
-            expect_timeout=3,
+            expect_timeout=(
+                6 if _non_linux and _ci_env
+                else 3
+            ),
             # preexec_fn=unset_colors,
             # ^TODO? get `pytest` core to expose underlying
             # `pexpect.spawn()` stuff?