runner-cleanup: give job-completed hook a .sh extension

The GitHub runner validates ACTIONS_RUNNER_HOOK_JOB_COMPLETED and rejects
it in the 'Complete runner' step unless the path ends in .sh/.ps1/.js:

  Error: /usr/local/sbin/runner-job-completed is not a valid path to a
  script. Make sure it ends in '.sh', '.ps1' or '.js'.

Rename runner-job-completed -> runner-job-completed.sh, install it under
that name, point the per-runner .env at it, and remove the old
extensionless copy from earlier installs. The .env wiring is an idempotent
sed, so re-running install migrates existing runners to the new path.

Signed-off-by: Igor Pecovnik <igor@armbian.com>

Author: igorpecovnik

tools/modules/system/module_armbian_runners.sh

@@ -203,7 +203,12 @@ function module_armbian_runners () {
 				# cleanup. The runner runs this after every job via
 				# ACTIONS_RUNNER_HOOK_JOB_COMPLETED (wired into each
 				# runner's .env below).
-				install -m 0755 "${cleanup_src}/runner-job-completed"   /usr/local/sbin/runner-job-completed
+				# The GitHub runner validates the hook path and rejects it
+				# unless it ends in .sh/.ps1/.js, so the installed name keeps
+				# the .sh extension. Remove the old extensionless copy left by
+				# earlier installs.
+				install -m 0755 "${cleanup_src}/runner-job-completed.sh" /usr/local/sbin/runner-job-completed.sh
+				rm -f /usr/local/sbin/runner-job-completed
 				systemctl daemon-reload
 				# Don't silence errors here — a failed timer install
 				# means the cleanup never fires and the host quietly
@@ -233,7 +238,7 @@ function module_armbian_runners () {
 				# passwordless sudo) after each job. Idempotent; covers
 				# already-installed runners too. Takes effect on each runner's
 				# next (re)start, so we don't force-restart busy ones here.
-				local job_hook_path="/usr/local/sbin/runner-job-completed"
+				local job_hook_path="/usr/local/sbin/runner-job-completed.sh"
 				local runner_home runner_owner env_file
 				for runner_home in /home/actions-runner-*; do
 					[[ -d "$runner_home" ]] || continue