Change version and duration for stalebot

[upkarlidder]

Background on the problem the feature will solve/improved user experience

Stalebot defaults are not too short for the team. The version also needs to be updated.

Describe the solution you'd like

A clear and concise description of what you want to happen.

Tasks

In the .github/workflows/stale.yml file:

• [ ] update version to actions/stale@v4
• [ ] change days-before-stale: 60
• [ ] change days-before-close:90

Acceptance Criteria

Stalebot version, days-before-close, and days-before-stale are updated

FYI @demilolu @naagma5

[github-actions[bot]]

:wave: Hi! This issue has been marked stale due to inactivity. If no further activity occurs, it will automatically be closed in 14 days.

[upkarlidder]

Completed PR #37