Docs: add redirect for file rename

[Blargian]

Summary

Adds a redirect for file renamed here: ClickHouse/ClickHouse#92668

Also fixes the following broken links in this repo:

[2025-12-19 14:00:01]     |   Exhaustive list of all broken links found:
[2025-12-19 14:00:01]     |   - Broken link on source page path = /docs/getting-started/example-datasets/hacker-news:
[2025-12-19 14:00:01]     |      -> linking to /docs/engines/table-engines/mergetree-family/invertedindexes
[2025-12-19 14:00:01]     |   - Broken link on source page path = /docs/migrations/bigquery/biquery-vs-clickhouse-cloud:
[2025-12-19 14:00:01]     |      -> linking to /docs/engines/table-engines/mergetree-family/invertedindexes

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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Project	Deployment	Review	Updated (UTC)
clickhouse-docs	Ready	Preview, Comment	Dec 19, 2025 2:58pm
clickhouse-docs-jp	Building	Preview, Comment	Dec 19, 2025 2:58pm

2 Skipped Deployments

Project	Deployment	Review	Updated (UTC)
clickhouse-docs-ru	Ignored	Preview	Dec 19, 2025 2:58pm
clickhouse-docs-zh	Ignored	Preview	Dec 19, 2025 2:58pm