chore: exclude file which auto-gen by "make" checkin

[zdtsw]

Description

seems some IDE would auto checkin files or maybe a "git add ." does so, but config/manager/kustomization.yamlis not intended to be store in git repo

How Has This Been Tested?

Screenshot or short clip

Merge criteria

• [ ] You have read the contributors guide.
• [ ] Commit messages are meaningful - have a clear and concise summary and detailed explanation of what was changed and why.
• [ ] Pull Request contains a description of the solution, a link to the JIRA issue, and to any dependent or related Pull Request.
• [ ] Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• [ ] The developer has manually tested the changes and verified that the changes work

[openshift-ci[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: AjayJagan

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