chore(deps): update dependency undici to v6

Author: renovate[bot]

package.json

@@ -48,7 +48,7 @@
     "node-html-parser": "^5.4.2",
     "octokit": "^2.1.0",
     "ts-dotenv": "^0.9.1",
-    "undici": "^5.28.4",
+    "undici": "^6.21.0",
     "winston": "^3.17.0"
   },
   "publishConfig": {

yarn.lock

@@ -350,13 +350,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@fastify/busboy@npm:^2.0.0":
-  version: 2.0.0
-  resolution: "@fastify/busboy@npm:2.0.0"
-  checksum: 41879937ce1dee6421ef9cd4da53239830617e1f0bb7a0e843940772cd72827205d05e518af6adabe6e1ea19301285fff432b9d11bad01a531e698bea95c781b
-  languageName: node
-  linkType: hard
-
 "@gar/promisify@npm:^1.1.3":
   version: 1.1.3
   resolution: "@gar/promisify@npm:1.1.3"
@@ -3237,7 +3230,7 @@ __metadata:
     rimraf: ^6.0.1
     ts-dotenv: ^0.9.1
     typescript: 5.6.3
-    undici: ^5.28.4
+    undici: ^6.21.0
     winston: ^3.17.0
   bin:
     task: dist/bin.js
@@ -4578,12 +4571,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"undici@npm:^5.28.4":
-  version: 5.28.4
-  resolution: "undici@npm:5.28.4"
-  dependencies:
-    "@fastify/busboy": ^2.0.0
-  checksum: a8193132d84540e4dc1895ecc8dbaa176e8a49d26084d6fbe48a292e28397cd19ec5d13bc13e604484e76f94f6e334b2bdc740d5f06a6e50c44072818d0c19f9
+"undici@npm:^6.21.0":
+  version: 6.21.0
+  resolution: "undici@npm:6.21.0"
+  checksum: bc2eb26c4b010a4f816314d48d4529f62b1116405097b2c5f0ac68247c56049a857d11a9f05b237818f04ce4f51d6f5e8d6fcc6aae2ab816c2b7318a9706727c
   languageName: node
   linkType: hard