ci: automatically close issues marked as “not bug” over time

[EdamAme-x]

#751 (comment)

Propose workflow

If an issue labeled not bug is inactive for 7 days, it will be labeled stale and start the time limit of the closing issue.
A warning will be given that the issue will be closed. If there is no activity for two days, it will be closed.

name: Close stale issues with "not bug" label

on:
  schedule:
    - cron: '0 0 * * *' 

permissions:
  contents: write
  issues: write

jobs:
  stale:
    runs-on: ubuntu-latest
    steps:
      - name: Close stale issues with "not bug" label
        uses: actions/stale@v8
        with:
          days-before-stale: 7                    
          days-before-close: 2                     
          stale-issue-message: 'This issue has been marked as stale due to inactivity.'
          close-issue-message: 'Closing this issue due to inactivity.'
          exempt-issue-labels: ''                  
          only-labels: 'not bug'                   
          operations-per-run: 30                   
          remove-stale-when-updated: true          

[EdamAme-x]

If you like this behavior, I can PR immediately.

[EdamAme-x]

I can also disable comments, as notifications can become noisy.

[yusukebe]

Hi @EdamAme-x

If you like this behavior, I can PR immediately.

I love this idea ❤️

I can also disable comments, as notifications can become noisy.

Can I see the repo which uses a similar workflow?

[EdamAme-x]

hmm...

Major repositories (such as Dart) seem to have messages set up. (https://github.com/dart-lang/sdk/blob/main/.github/workflows/no-response.yml)
However, messages can still bloat the volume of notifications.