Create stale action workflow (#449)

Co-authored-by: Félix Boisselier <[email protected]>

.github/workflows/stale.yml

@@ -0,0 +1,40 @@
+name: Mark and Manage Stale Issues and Pull Requests
+
+on:
+  schedule:
+  - cron: '30 7 * * *'
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: write
+
+    steps:
+    - uses: actions/[email protected]
+      with:
+        repo-token: ${{ secrets.GITHUB_TOKEN }}
+        days-before-stale: 30
+        days-before-close: 14
+        stale-issue-message: >
+          📌 **This issue has been marked as stale because it has not had activity in the past 30 days.**
+          
+          To keep it open, please respond to this message or add new information. Otherwise, this will be closed in 14 days.
+          
+          Thank you for your contributions!
+        stale-pr-message: >
+          📌 **This pull request has been marked as stale because it has not had activity in the past 30 days.**
+          
+          Please update the PR or comment to keep it active. Otherwise, this will be closed in 14 days.
+          
+          We appreciate your contribution!
+        stale-issue-label: 'stale'
+        stale-pr-label: 'stale, reviewer-needed'
+        exempt-issue-labels: 'tracking'
+        exempt-pr-labels: 'tracking'
+        close-issue-message: 'This issue was closed due to inactivity for 14 days. Feel free to reopen it if you think it was an error or if there's new information or progress.'
+        close-pr-message: 'This pull request was closed due to inactivity for 14 days. Please reopen it if you think it was an error or if you wish to continue the contribution.'
+        exempt-all-milestones: true
+        exempt-all-assignees: true
+        exempt-draft-prs: true