Fix getting timeout for get mounts facts on Linux (#79847)

* Fix how to get the gather_timeout setting while getting the
mounts facts on Linux.

Issue: #79844

changelogs/fragments/79844-fix-timeout-mounts-linux.yml

@@ -0,0 +1,2 @@
+bugfixes:
+  - setup gather_timeout - Fix timeout in get_mounts_facts for linux.

lib/ansible/module_utils/facts/hardware/linux.py

@@ -550,7 +550,7 @@ class LinuxHardware(Hardware):
         # start threads to query each mount
         results = {}
         pool = ThreadPool(processes=min(len(mtab_entries), cpu_count()))
-        maxtime = globals().get('GATHER_TIMEOUT') or timeout.DEFAULT_GATHER_TIMEOUT
+        maxtime = timeout.GATHER_TIMEOUT or timeout.DEFAULT_GATHER_TIMEOUT
         for fields in mtab_entries:
             # Transform octal escape sequences
             fields = [self._replace_octal_escapes(field) for field in fields]