Update vue test app dependencies

Editor assessment

Routine dependency maintenance on the Vue test app, sensibly typed 'test(vue)' since only test scaffolding changes; some teams would prefer 'build' or a 'deps' scope, but the type still signals exclusion from changelogs and version bumps, which is what matters. The subject 'update vue test app dependencies' is imperative and appropriately terse, if not maximally specific — no hint of which packages or whether a major version was involved, and 'vue' appears redundantly after the scope. Header-only with no footer is acceptable for this class of change, though a body listing significant bumps would help anyone bisecting test flakiness later. Structurally valid and low-risk; the sort of commit that should stay boring, and does.