[PR #11780/5c6a5999 backport][stable-12] Ensure standard locale in run_command (group5-batch9) (#11803)

Ensure standard locale in run_command (group5-batch9) (#11780)

* Fix locale env vars in run_command() calls for group5 batch9 modules

Set LANGUAGE=C and LC_ALL=C via run_command_environ_update to ensure
locale-independent output parsing in beadm, pkg5, pkg5_publisher,
and swdepot.



* Add changelog fragment for PR #11780



---------


(cherry picked from commit 5c6a599940)

Co-authored-by: Alexei Znamensky <103110+russoz@users.noreply.github.com>
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

plugins/modules/pkg5.py

@@ -101,6 +101,7 @@ def main():
         ),
         supports_check_mode=True,
     )
+    module.run_command_environ_update = {"LANGUAGE": "C", "LC_ALL": "C"}
 
     params = module.params
     packages = []