Remove special characters before calling xargs in notify comment (#3661)

Author: mattcreaser

.github/workflows/issue_comment.yml

@@ -17,7 +17,7 @@ jobs:
           COMMENT_URL: ${{ github.event.comment.html_url }}
           USER: ${{ github.event.comment.user.login }}
         shell: bash
-        run: echo $BODY | xargs -I {} curl -s POST "$WEBHOOK_URL" -H "Content-Type:application/json" --data '{"body":"{}", "issue":"'$COMMENT_URL'", "user":"'$USER'"}'
+        run: echo $BODY | sed "s/\\\n/. /g; s/\\\r//g; s/[^a-zA-Z0-9 &().,:]//g" |  xargs -I {} curl -s POST "$WEBHOOK_URL" -H "Content-Type:application/json" --data '{"body":"{}", "issue":"'$COMMENT_URL'", "user":"'$USER'"}'
 
   adjust-labels:
     runs-on: ubuntu-latest