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_

Start by comparing the existing dry_run functionality in the cleanowners action with the automatic-contrib-prs, contributors, internal-contribution-forks, evergreen, issues-metrics, and stale-repos actions listed in the issue. Determine consistent dry-run behavior for each action and verify that dry-run executions perform no changes across all listed tools.

Written by the indexing model from the issue text.