auto close duplicated issues

.github/workflows/auto-close-duplicate.yaml

@@ -0,0 +1,35 @@
+name: Close duplicates
+on:
+  issues:
+    types: [opened]
+jobs:
+  run:
+    runs-on: ubuntu-latest
+    permissions: write-all
+    steps:
+      - uses: iv-org/close-potential-duplicates@v1
+        with:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          # Issue title filter work with anymatch https://www.npmjs.com/package/anymatch.
+          # Any matched issue will stop detection immediately.
+          # You can specify multi filters in each line.
+          filter: ''
+          # Exclude keywords in title before detecting.
+          exclude: ''
+          # Label to set, when potential duplicates are detected.
+          label: duplicate
+          # Get issues with state to compare. Supported state: 'all', 'closed', 'open'.
+          state: open
+          # If similarity is higher than this threshold([0,1]), issue will be marked as duplicate.
+          threshold: 0.6
+          # Reactions to be add to comment when potential duplicates are detected.
+          # Available reactions: "-1", "+1", "confused", "laugh", "heart", "hooray", "rocket", "eyes"
+          reactions: ''
+          close: true
+          # Comment to post when potential duplicates are detected.
+          comment: >
+            Hello, your issue is a duplicate of this/these issue(s): {{#issues}}
+              - #{{ number }} [accuracy: ({{ accuracy }}%)]
+            {{/issues}}
+            If this is a mistake please explain why and ping @\unixfox, @\SamantazFox and @\TheFrenchGhosty.
+            Please refrain from opening new issues, it won't help in solving your problem.