chore: extend gh-aw workflow stop-after period from 1mo to 6mo (#4940)

Author: yomybaby

.github/aw/actions-lock.json

@@ -4,6 +4,16 @@
       "repo": "actions/checkout",
       "version": "v5",
       "sha": "93cb6efe18208431cddfb8368fd83d5badbf9bfd"
+    },
+    "actions/github-script@v8": {
+      "repo": "actions/github-script",
+      "version": "v8",
+      "sha": "ed597411d8f924073f98dfc5c65a23a2325f34cd"
+    },
+    "githubnext/gh-aw/actions/setup@v0.34.5": {
+      "repo": "githubnext/gh-aw/actions/setup",
+      "version": "v0.34.5",
+      "sha": "3de4a6a6d15bb07764b207e40da8c7047474a335"
     }
   }
 }