Add Auto Labeler for issues

.github/workflows/issue_comment.yml

@@ -0,0 +1,19 @@
+name: Add Label with Comment
+
+on: [issue_comment]
+
+jobs:
+  create_comment:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions-ecosystem/action-regex-match@v2
+        id: regex-match
+        with:
+          text: ${{ github.event.comment.body }}
+          regex: '\[lang:\s*(.*?)\s*\]'
+
+      - uses: actions-ecosystem/action-add-labels@v1
+        if: ${{ steps.regex-match.outputs.match != '' }}
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          labels: "lang: ${{ steps.regex-match.outputs.group1 }}"