build(deps): remove @discordjs/rest undici patch

- Drop the patchedDependencies entry from package.json and bun.lock
- Delete patches/@discordjs%2Frest@2.6.1.patch, which pinned undici to 6.27.0

bun.lock

@@ -28,9 +28,6 @@
       },
     },
   },
-  "patchedDependencies": {
-    "@discordjs/rest@2.6.1": "patches/@discordjs%2Frest@2.6.1.patch",
-  },
   "overrides": {
     "@xmldom/xmldom": "0.8.15",
     "app-builder-lib": "26.16.1",

package.json

@@ -287,8 +287,5 @@
     "printWidth": 100,
     "singleQuote": true,
     "trailingComma": "all"
-  },
-  "patchedDependencies": {
-    "@discordjs/rest@2.6.1": "patches/@discordjs%2Frest@2.6.1.patch"
   }
 }

patches/@discordjs%2Frest@2.6.1.patch

@@ -1,13 +0,0 @@
-diff --git a/package.json b/package.json
-index 02d2d8809a98c5d32b889fceba11458660f1fa6a..72cd7004d92809689daaeec1cd8a274e1cabdff5 100644
---- a/package.json
-+++ b/package.json
-@@ -77,7 +77,7 @@
-     "discord-api-types": "^0.38.40",
-     "magic-bytes.js": "^1.13.0",
-     "tslib": "^2.6.3",
--    "undici": "6.24.1",
-+    "undici": "6.27.0",
-     "@discordjs/collection": "^2.1.1",
-     "@discordjs/util": "^1.2.0"
-   },