[bot/stale] Force the PR close time to 60 days

[sapk]

I found a missing param in the stale bot config and it doesn't follow the comment that is posted.

Ex: #4749 is closed after 2 weeks and not 2 months

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@ac0d551). Click here to learn what that means.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #5770   +/-   ##
=========================================
  Coverage          ?   37.72%           
=========================================
  Files             ?      327           
  Lines             ?    47818           
  Branches          ?        0           
=========================================
  Hits              ?    18041           
  Misses            ?    27183           
  Partials          ?     2594

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[zeripath]

Although I think leaving an issue open for 120 days before closing is perhaps a bit too long. It's kinda bad to say we're not going to close it for 60 days then close it after two weeks...

[sapk]

@zeripath current settings are for PR and issue.
2 months inactivity -> stale tag
And for issue after 2 weeks without response the bot close
And for PR it wait another 2 months before closing.

The goal was at start to not frustate potential contributor but we could decrease the time after.