chore(deps-dev): bump undici from 7.25.0 to 7.28.0 in /vscode-extension in the npm_and_yarn group across 1 directory #7

Job	Run time
Frontend lint, typecheck & unit tests	32s
Tauri build smoke test	3m 23s
Rust check & test	1m 47s
Offline critical journey tests	1m 7s
1.x → 2.0 migration rehearsal	1m 4s
	7m 53s

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