Update days-before-stale and days-before-close

[ramsayleung]

Description

Update days-before-stale and days-before-close

Motivation and Context

Update days-before-stale from a half year to two years

Dependencies

None

Type of change

Please delete options that are not relevant.

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update

How has this been tested?

All CI jobs should pass

Is this change properly documented?

It's unnecessary