Remove bulkUpdate limitation from ZDT docs

[TinaHeiligers]

Summary

After #171245 merges, the limitation from using bulkUpdate in ZDT will be removed.

• Documentation was updated for features that require explanation or tutorials

[TinaHeiligers]

Add a warning about using bulk update for SO types that store large json blobs, which have the highest risk of causing memory consumption issues. #171245 (comment)

[elasticmachine]

Pinging @elastic/kibana-core (Team:Core)

[TinaHeiligers]

@elasticmachine merge upstream

[kibana-ci]

💛 Build succeeded, but was flaky

• Buildkite Build
• Commit: ed1aca3

Failed CI Steps

• Investigations - Security Solution Cypress Tests #5

Test Failures

• [job] [logs] Investigations - Security Solution Cypress Tests #5 / Save Timeline Prompts "before each" hook for "Changed & unsaved timeline should prompt when user navigates away within security solution where timelines are disabled eg. admin screen" "before each" hook for "Changed & unsaved timeline should prompt when user navigates away within security solution where timelines are disabled eg. admin screen"

Metrics [docs]

✅ unchanged

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream

cc @TinaHeiligers