chore(deps): bump undici from 5.19.1 to 5.28.2 in /packages/backend

Bumps [undici](https://github.com/nodejs/undici) from 5.19.1 to 5.28.2.
- [Release notes](https://github.com/nodejs/undici/releases)
- [Commits](nodejs/undici@v5.19.1...v5.28.2)

---
updated-dependencies:
- dependency-name: undici
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

packages/backend/yarn.lock

@@ -106,6 +106,11 @@
     minimatch "^3.1.2"
     strip-json-comments "^3.1.1"
 
+"@fastify/busboy@^2.0.0":
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/@fastify/busboy/-/busboy-2.1.0.tgz#0709e9f4cb252351c609c6e6d8d6779a8d25edff"
+  integrity sha512-+KpH+QxZU7O4675t3mnkQKcZZg56u+K/Ct2K+N2AZYNVK8kyeo/bI18tI8aPm3tvNNRyTWfj6s5tnGNlcbQRsA==
+
 "@gar/promisify@^1.1.3":
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/@gar/promisify/-/promisify-1.1.3.tgz#555193ab2e3bb3b6adc3d551c9c030d9e860daf6"
@@ -1685,13 +1690,6 @@ busboy@^0.2.11:
     dicer "0.2.5"
     readable-stream "1.1.x"
 
-busboy@^1.6.0:
-  version "1.6.0"
-  resolved "https://registry.yarnpkg.com/busboy/-/busboy-1.6.0.tgz#966ea36a9502e43cdb9146962523b92f531f6893"
-  integrity sha512-8SFQbg/0hQ9xy3UNTB0YEnsNBbWfhf7RtnzpL7TkBiTBRfrQ9Fxcnz7VJsleJpyp6rVLvXiuORqjlHi5q+PYuA==
-  dependencies:
-    streamsearch "^1.1.0"
-
 [email protected], bytes@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/bytes/-/bytes-3.1.0.tgz#f6cf7933a360e0588fa9fde85651cdc7f805d1f6"
@@ -7016,11 +7014,6 @@ [email protected]:
   resolved "https://registry.yarnpkg.com/streamsearch/-/streamsearch-0.1.2.tgz#808b9d0e56fc273d809ba57338e929919a1a9f1a"
   integrity sha1-gIudDlb8Jz2Am6VzOOkpkZoanxo=
 
-streamsearch@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/streamsearch/-/streamsearch-1.1.0.tgz#404dd1e2247ca94af554e841a8ef0eaa238da764"
-  integrity sha512-Mcc5wHehp9aXz1ax6bZUyY5afg9u2rv5cqQI3mRrYkGC8rW2hM02jWuwjtL++LS5qinSyhj2QfLyNsuc+VsExg==
-
 streamx@^2.15.0:
   version "2.15.5"
   resolved "https://registry.yarnpkg.com/streamx/-/streamx-2.15.5.tgz#87bcef4dc7f0b883f9359671203344a4e004c7f1"
@@ -7611,11 +7604,11 @@ unbox-primitive@^1.0.2:
     which-boxed-primitive "^1.0.2"
 
 undici@^5.2.0:
-  version "5.19.1"
-  resolved "https://registry.yarnpkg.com/undici/-/undici-5.19.1.tgz#92b1fd3ab2c089b5a6bd3e579dcda8f1934ebf6d"
-  integrity sha512-YiZ61LPIgY73E7syxCDxxa3LV2yl3sN8spnIuTct60boiiRaE1J8mNWHO8Im2Zi/sFrPusjLlmRPrsyraSqX6A==
+  version "5.28.2"
+  resolved "https://registry.yarnpkg.com/undici/-/undici-5.28.2.tgz#fea200eac65fc7ecaff80a023d1a0543423b4c91"
+  integrity sha512-wh1pHJHnUeQV5Xa8/kyQhO7WFa8M34l026L5P/+2TYiakvGy5Rdc8jWZVyG7ieht/0WgJLEd3kcU5gKx+6GC8w==
   dependencies:
-    busboy "^1.6.0"
+    "@fastify/busboy" "^2.0.0"
 
 uniq@^1.0.0:
   version "1.0.1"