Fix service_mgr fact collection (#32086)

The platform/distro/etc facts were being passed in
correctly, but service_mgr.py was looking up the
wrong names ('system' vs 'ansible_system') resulting
in service_mgr falling back to default 'service' result.

Fixes #30753, #31095
(cherry picked from commit 6203e89)

lib/ansible/module_utils/facts/system/service_mgr.py

@@ -105,22 +105,22 @@ def collect(self, module=None, collected_facts=None):
 
         # FIXME: replace with a system->service_mgr_name map?
         # start with the easy ones
-        elif collected_facts.get('distribution', None) == 'MacOSX':
+        elif collected_facts.get('ansible_distribution', None) == 'MacOSX':
             # FIXME: find way to query executable, version matching is not ideal
             if LooseVersion(platform.mac_ver()[0]) >= LooseVersion('10.4'):
                 service_mgr_name = 'launchd'
             else:
                 service_mgr_name = 'systemstarter'
-        elif 'BSD' in collected_facts.get('system', '') or collected_facts.get('system') in ['Bitrig', 'DragonFly']:
+        elif 'BSD' in collected_facts.get('ansible_system', '') or collected_facts.get('ansible_system') in ['Bitrig', 'DragonFly']:
             # FIXME: we might want to break out to individual BSDs or 'rc'
             service_mgr_name = 'bsdinit'
-        elif collected_facts.get('system') == 'AIX':
+        elif collected_facts.get('ansible_system') == 'AIX':
             service_mgr_name = 'src'
-        elif collected_facts.get('system') == 'SunOS':
+        elif collected_facts.get('ansible_system') == 'SunOS':
             service_mgr_name = 'smf'
-        elif collected_facts.get('distribution') == 'OpenWrt':
+        elif collected_facts.get('ansible_distribution') == 'OpenWrt':
             service_mgr_name = 'openwrt_init'
-        elif collected_facts.get('system') == 'Linux':
+        elif collected_facts.get('ansible_system') == 'Linux':
             # FIXME: mv is_systemd_managed
             if self.is_systemd_managed(module=module):
                 service_mgr_name = 'systemd'