Two-part fix for the Update JS Client Libraries Docs workflow. First,
the `make` invocation was narrowed to `make download.tsdoc.v2` so the
workflow no longer re-downloads unrelated Management and Storage REST
openapi specs alongside the JS TypeDoc files, which was the source of
the noise in #46738. Second, the `build-reference-content` snapshot test
now serializes to a JSON file via `toMatchFileSnapshot` with a
cycle-breaker, because the previous `toMatchSnapshot` of a raw object
was being collapsed to `[Object]` placeholders by pretty-format (533 of
them), hiding every param rename, JSDoc edit, return-type change, and
signature tweak. Verified against supabase-js v2.108.0: the `count` to
`rows` rename in `PostgrestTransformBuilder.{limit,maxAffected}` now
shows up in the snapshot diff as expected.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
* **Chores**
* Updated documentation generation workflow to run a more targeted build
command.
* Added ignore rule for test snapshot files and refreshed the
autogenerated PR description/reference snapshot.
* **Tests**
* Improved test snapshot strategy to use file-based snapshots and robust
handling of circular structures for more reliable assertions.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
