ci: fix retry config — exit_codes is OR not a filter on script_failure

Remove script_failure from the global when: list. Having both
script_failure and exit_codes: [75] retries on any script failure OR
exit code 75 — not exit code 75 only as intended.

exit_codes: [75] alone correctly retries only jobs that exit with
code 75 (the EX_TEMPFAIL sentinel from wait-for-service-ready.sh),
leaving all other script failures (exit 1, real test failures)
unretried.

Author: Leiyks

.gitlab/generate-common.php

@@ -111,9 +111,8 @@ function windows_git_setup_with_packages() {
       - api_failure
       - stuck_or_timeout_failure
       - job_execution_timeout
-      - script_failure
     exit_codes:
-      - 75  # EX_TEMPFAIL: transient infrastructure unavailability (service startup timeout, download failure, etc.)
+      - 75
 
 .all_targets: &all_minor_major_targets
 <?php