fix: less promises for scanning and await with allSettled

[dominikg]

alternative to #11243

doesn't add cancel() function to as that may have performance implications and the way the function has to be passed around isn't nice.

Description

Additional context

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What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

Before submitting the PR, please make sure you do the following

• Read the Contributing Guidelines.
• Read the Pull Request Guidelines and follow the Commit Convention.
• Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate.
• Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).
• Ideally, include relevant tests that fail without this PR but pass with it.

[patak-dev]

I think we should go with this one for v4. Let's check the canceling with more time, and actually, see how much we win perf wise for the extra complexity.

[patak-dev]

/ecosystem-ci run

[vite-ecosystem-ci]

📝 Ran ecosystem CI: Open

suite	result
astro	✅ success
histoire	✅ success
iles	✅ success
ladle	✅ success
laravel	✅ success
marko	✅ success
nuxt-framework	❌ failure
rakkas	⏹️ cancelled
sveltekit	❌ failure
vite-plugin-ssr	❌ failure
vite-plugin-react	✅ success
vite-plugin-react-swc	✅ success
vite-plugin-svelte	✅ success
vite-plugin-vue	✅ success
vite-setup-catalogue	✅ success
vitepress	✅ success
vitest	❌ failure
windicss	✅ success

[patak-dev]

/ecosystem-ci run sveltekit

[vite-ecosystem-ci]

📝 Ran ecosystem CI: Open

suite	result
sveltekit	✅ success