Bump undici from 5.26.5 to 5.28.3 (#297)

Bumps [undici](https://github.com/nodejs/undici) from 5.26.5 to 5.28.3.
- [Release notes](https://github.com/nodejs/undici/releases)
- [Commits](https://github.com/nodejs/undici/compare/v5.26.5...v5.28.3)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "setup-kustomize",
-  "version": "2.0.0",
+  "version": "2.1.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "setup-kustomize",
-      "version": "2.0.0",
+      "version": "2.1.0",
       "license": "MIT",
       "dependencies": {
         "@actions/core": "^1.2.6",
@@ -6924,9 +6924,9 @@
       }
     },
     "node_modules/undici": {
-      "version": "5.26.5",
-      "resolved": "https://registry.npmjs.org/undici/-/undici-5.26.5.tgz",
-      "integrity": "sha512-cSb4bPFd5qgR7qr2jYAi0hlX9n5YKK2ONKkLFkxl+v/9BvC0sOpZjBHDBSXc5lWAf5ty9oZdRXytBIHzgUcerw==",
+      "version": "5.28.3",
+      "resolved": "https://registry.npmjs.org/undici/-/undici-5.28.3.tgz",
+      "integrity": "sha512-3ItfzbrhDlINjaP0duwnNsKpDQk3acHI3gVJ1z4fmwMK31k5G9OVIAMLSIaP6w4FaGkaAkN6zaQO9LUvZ1t7VA==",
       "dependencies": {
         "@fastify/busboy": "^2.0.0"
       },