Add stale workflow

[xnuohz]

for fun, feel free to merge or close

[Kh4L]

thanks for adding this workflow!

30 days might be a bit too strict
how about 60 days?

[xnuohz]

@Kh4L thanks for the review:)
will change it to 60d, 2 more questions:

1. should also apply it to pr? current it’s closed.
2. what other labels need to be included in stale? current only bug

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.43%. Comparing base (c211214) to head (6beb0cc).
⚠️ Report is 94 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #10146      +/-   ##
==========================================
- Coverage   86.11%   85.43%   -0.68%     
==========================================
  Files         496      496              
  Lines       33655    34007     +352     
==========================================
+ Hits        28981    29055      +74     
- Misses       4674     4952     +278     

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[puririshi98]

this LGTM, @akihironitta @rusty1s thoughts?

[akihironitta]

Looks great!

[xnuohz]

@akihironitta thanks for the review, all resolved.

[puririshi98]

closing based on matthias's decision to not merge