ClickPipes: update doc with ClickPipes faqs

[Blargian]

Summary

Checklist

• Delete items not relevant to your PR
• URL changes should add a redirect to the old URL via https://github.com/ClickHouse/clickhouse-docs/blob/main/docusaurus.config.js
• If adding a new integration page, also add an entry to the integrations list here: https://github.com/ClickHouse/clickhouse-docs/blob/main/docs/integrations/index.mdx

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Name	Status	Preview	Comments	Updated (UTC)
clickhouse-docs	✅ Ready (Inspect)	Visit Preview		May 27, 2025 8:42am

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[Blargian]

@saisrirampur could you please take a look when you get a chance: https://clickhouse-docs-il0oz71tf-clickhouse.vercel.app/docs/cloud/manage/billing/overview#clickpipes-pricing

[saisrirampur]

@Blargian I don't see the Example captured in the preview. Am I missing something?

[Blargian]

/docs/cloud/manage/billing/overview#clickpipes-pricing

@saisrirampur No, my mistake. I interpreted your instructions too literally :D have added the example: https://clickhouse-docs-k3f2aq6vp-clickhouse.vercel.app/docs/cloud/manage/billing/overview#clickpipes-pricing