Fix matcher

Author: SimonErm

.github/clippy-matcher.json

@@ -16,8 +16,8 @@
                     "column":3
                 },
                 {
-                    "regexp": "^\\s+\\|\\s+\\^+(.+)$",
-                    "message": 1,
+                    "regexp": ".+#\\[allow\\((.+)\\)\\].+$",
+                    "code": 1,
                     "loop": true
                 }
             ]