Dry run feature for all OSPO actions

### Is your feature request related to a problem?

Sometimes I just want to run the tool/action without doing any harm. I'd like to be able to run in dry_run mode on any of the actions. I believe cleanowners is the only one that has it.

### Related OSPO Tool

automatic-contrib-prs GitHub Action, contributors GitHub Action, internal-contribution-forks GitHub App, evergreen GitHub Action, issues-metrics GitHub Action, stale-repos GitHub Action

### Describe the solution you'd like

See dry_run functionality in cleanowners action

### Describe alternatives you've considered

_No response_

### Additional context

_No response_

首先，將 cleanowners action 中現有的 dry_run 功能與 issue 中列出的 automatic-contrib-prs、contributors、internal-contribution-forks、evergreen、issues-metrics 和 stale-repos actions 進行比較。確定每個 action 一致的 dry-run 行為，並驗證在所有列出的工具中執行 dry-run 都不會進行任何變更。

由索引模型根據 Issue 內容生成。