chore(deps-dev): bump undici in /fixtures/import-npm (#7857)

Bumps [undici](https://github.com/nodejs/undici) from 5.28.4 to 5.28.5.
- [Release notes](https://github.com/nodejs/undici/releases)
- [Commits](nodejs/undici@v5.28.4...v5.28.5)

---
updated-dependencies:
- dependency-name: undici
  dependency-type: direct:development
...

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

Author: dependabot[bot]

fixtures/import-npm/package-lock.json

@@ -15,7 +15,7 @@
 	},
 	"devDependencies": {
 		"@cloudflare/workers-tsconfig": "../../../../packages/workers-tsconfig",
-		"undici": "^5.28.4",
+		"undici": "^5.28.5",
 		"wrangler": "../../../../packages/wrangler"
 	}
 }