Bump undici from 5.26.3 to 5.28.3 in /airflow/www (#37493)

Bumps [undici](https://github.com/nodejs/undici) from 5.26.3 to 5.28.3.
- [Release notes](https://github.com/nodejs/undici/releases)
- [Commits](nodejs/undici@v5.26.3...v5.28.3)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
(cherry picked from commit 1376876)

airflow/www/yarn.lock

@@ -11401,9 +11401,9 @@ unbox-primitive@^1.0.2:
     which-boxed-primitive "^1.0.2"
 
 undici@^5.4.0:
-  version "5.26.3"
-  resolved "https://registry.yarnpkg.com/undici/-/undici-5.26.3.tgz#ab3527b3d5bb25b12f898dfd22165d472dd71b79"
-  integrity sha512-H7n2zmKEWgOllKkIUkLvFmsJQj062lSm3uA4EYApG8gLuiOM0/go9bIoC3HVaSnfg4xunowDE2i9p8drkXuvDw==
+  version "5.28.3"
+  resolved "https://registry.yarnpkg.com/undici/-/undici-5.28.3.tgz#a731e0eff2c3fcfd41c1169a869062be222d1e5b"
+  integrity sha512-3ItfzbrhDlINjaP0duwnNsKpDQk3acHI3gVJ1z4fmwMK31k5G9OVIAMLSIaP6w4FaGkaAkN6zaQO9LUvZ1t7VA==
   dependencies:
     "@fastify/busboy" "^2.0.0"