Docs fix — typos: path /elastic-cloud-serverless — 1 typo across 1 file

Generated by `gh-aw-docs-typos-sweep` for `elastic/docs-content` on 2026-W24.

Scanned 49 markdown files under /elastic-cloud-serverless; subtree corpus 49 markdown files; codespell raised 1 raw findings, 1 retained after filtering.

## Findings (1)

```yaml
- file: release-notes/elastic-cloud-serverless/_snippets/2026-05-06/index.md
line: 30
category: typo
severity: low
evidence: "'visiblity' — codespell suggests: visibility"
suggested_fix: |
visibility
```

## Done when
- All listed misspellings are corrected.
- A PR addressing this issue is merged.

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