fix(deps): update dependency yaml to v2.9.0

[elastic-renovate-prod]

This PR contains the following updates:

Package	Type	Update	Change
yaml (source)	dependencies	minor	2.8.4 -> 2.9.0

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Release Notes

eemeli/yaml (yaml)

v2.9.0

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The changes here are really only patches, but I'm releasing this as a minor version to note a small change to the documentation of parseDocument() and parseAllDocuments(): I've removed the claim that they'll "never throw".

It remains the case that practically all non-malicious inputs will be handled without emitting an error, but there is a decent chance that code paths remain where e.g. a RangeError due to call stack exhaustion can be triggered by malicious inputs. Up to now, I've considered these as security vulnerabilities, and in fact it's the only category of error for which yaml CVEs have been issued so far.

Starting from this release, I'll be considering such errors as bugs, but not vulnerabilities. I do welcome people and/or LLMs looking for them, but please report them as normal issues rather than suspected security vulnerabilities. This also applies to previously undiscovered bugs in earlier releases.

• fix: Avoid calling Array.prototype.push.apply() with large source array
• fix(lexer): Avoid recursive calls that may exhaust the call stack

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✅MegaLinter analysis: Success

Descriptor	Linter	Files	Fixed	Errors	Warnings	Elapsed time
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✅ REPOSITORY	gitleaks	yes		no	no	56.95s
✅ REPOSITORY	git_diff	yes		no	no	0.07s
✅ REPOSITORY	secretlint	yes		no	no	31.8s
✅ REPOSITORY	trivy	yes		no	no	17.51s

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