Add checks and creation for CI cleanup YAML files

[balajikumaran-c-s]

Summary

This PR fixes a bug where GitLab cleanup pipeline scripts were not being copied to the GitLab project during hosted mode deployment.

Problem

During GitLab hosted mode deployment, the CI/CD pipeline file upload task only copied build and deploy pipeline files to the GitLab repository, missing the cleanup pipeline scripts. This prevented users from using the cleanup pipeline functionality after deployment.

Missing files:

• .gitlab-ci-cleanup.yml
• .gitlab-ci-cleanup-child-template.yml

Solution

Added logic to check for and upload the cleanup pipeline scripts to the GitLab repository, following the same pattern used for other CI files:

1. Check if file exists in repository
2. Copy from role files directory if missing
3. Upload to repository via GitLab API

Changes

• Added cleanup pipeline file upload logic to the CI file push task