docs: update vitest-browser-vue/svelte async render

[hi-ogawa]

Description

• Closes Update vitest-browser-vue and vitest-browser-svelte to have async render with automatic trace mark #10126
• requires
  • feat!: make render async-only vitest-community/vitest-browser-svelte#29
  • feat!: make render async-only vitest-community/vitest-browser-vue#28

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