ci: try to optimize manual stage checker

Signed-off-by: Huaqi Fang <578567190@qq.com>

Author: fanghuaqi

.gitlab-ci.yml

@@ -213,6 +213,8 @@ cache:
             - freeloader
             - linux
             - u-boot
+        - if: $CI_JOB_STAGE == "manual"
+          when: manual
     tags:
         - env::shell
         - net::outside
@@ -252,8 +254,6 @@ cache:
 # Manual job template
 .build_linux_sdk_manual_template: &build_linux_sdk_manual_job_def
     extends: .job_rules
-    rules:
-        - when: manual
     artifacts:
         name: "bootimages-${SOC}-${CORE}-${BOOT_MODE}-${CI_COMMIT_SHA::8}"
         paths: