feat: Update Algolia index on master merge

[a-hariti]

Introduce a script to index the static docs HTML files generated by Next.js into Algolia.

It's a migration from the Gatsby solution, which relied on the gatsby-plugin-algolia here

The record generation logic is reused as is, with two notable changes:

1. We manually feed the HTML files to the record generation function
2. We manually upload the records to Algolia

Required environment variables before the merge (repo secrets):

• [x] ALGOLIA_APP_ID=OOK48W9UCL
• [x] ALGOLIA_API_KEY: The write API key
• [x] ALGOLIA_INDEX_PREFIX: (sentry-), which will show up as sentry-docs (index name) on Algolia
• [x] NEXT_PUBLIC_ALGOLIA_APP_ID=OOK48W9UCL
• [x] NEXT_PUBLIC_ALGOLIA_SEARCH_KEY=ca98597f559459c216891b75989832f8

ALGOLIA_INDEX_PREFIX can be set to a different string until we make sure this works as expected before setting it to sentry-

Closes #9869 Closes #9876 Closes #9778 Closes #6978

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Name	Status	Preview	Comments	Updated (UTC)
sentry-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 16, 2024 1:12pm

[codecov[bot]]

Bundle Report

Changes will increase total bundle size by 77 bytes :arrow_up:

Bundle name	Size	Change
sentry-docs-client	6.16MB	4 bytes :arrow_down:
sentry-docs-server	7.38MB	84 bytes :arrow_up:
sentry-docs-edge-server	458.69kB	3 bytes :arrow_down: