[Metax][CI] fix ci bugs (#7929)

* Change Jenkins trigger group from APPROVAL to GZ_BD-CPU

* Change Jenkins runner to self-hosted XPU-P800

* Update Jenkins GitHub Action to version 1.2

* Remove cleanup step in ci_metax.yml

Removed cleanup step from CI workflow.

Author: plusNew001

.github/workflows/ci_metax.yml

@@ -22,9 +22,6 @@ jobs:
     environment: Metax_ci
 
     steps:
-      - name: Cleanup
-        run: |
-          rm -rf * .[^.]*
       - name: Trigger Jenkins job
         timeout-minutes: 60
         uses: MetaX-MACA/simple-jenkins-githubaction@v1.2