Pr/stale bot

[Phoenix500526]

Please briefly answer these questions: add a workflow to handle stale issues and prs

• what problem are you trying to solve? (or if there's no problem, what's the motivation for this change?)

• what changes does this pull request make?

• are there any non-obvious implications of these changes? (does it break compatibility with previous versions, etc)

[mergify[bot]]

@Phoenix500526 You've modified the workflows. Please don't forget to update the .mergify.yml.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 75.53%. Comparing base (e35b35a) to head (43db5c1). Report is 57 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #785 +/- ## ========================================== - Coverage 75.55% 75.53% -0.02% ========================================== Files 180 187 +7 Lines 26938 27562 +624 Branches 26938 27562 +624 ========================================== + Hits 20353 20820 +467 - Misses 5366 5459 +93 - Partials 1219 1283 +64 ```

:umbrella: View full report in Codecov by Sentry.
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[mergify[bot]]

@Phoenix500526 Convert your pr to draft since CI failed

[Phoenix500526]

@Mergifyio rebase

[mergify[bot]]

rebase

✅ Branch has been successfully rebased

[mergify[bot]]

@Phoenix500526 Convert your pr to draft since CI failed