Update git stale action

[srajiang]

Summary

This PR removes the no-op flag on our newly added stale action - I will trigger this manually for the week (and it will run going forward Sunday PST).

I've also added a few language tweaks after team feedback and increased the limit of # operations to 60 / job.

Requirements (place an x in each [ ])

• I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.

[codecov]

Codecov Report

Merging #1225 (1de7e6d) into main (b366702) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #1225   +/-   ##
=======================================
  Coverage   73.20%   73.20%           
=======================================
  Files          17       17           
  Lines        1437     1437           
  Branches      431      431           
=======================================
  Hits         1052     1052           
  Misses        300      300           
  Partials       85       85           

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