build: update dependency jsdom to v29

[angular-robot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
jsdom	28.1.0 → 29.0.0

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Release Notes

jsdom/jsdom (jsdom)

v29.0.0

Compare Source

Breaking changes:

• Node.js v22.13.0+ is now the minimum supported v22 version (was v22.12.0+).

Other changes:

• Overhauled the CSSOM implementation, replacing the @acemir/cssom and cssstyle dependencies with fresh internal implementations built on webidl2js wrappers and the css-tree parser. Serialization, parsing, and API behavior is improved in various ways, especially around edge cases.
• Added CSSCounterStyleRule and CSSNamespaceRule to jsdom Windows.
• Added cssMediaRule.matches and cssSupportsRule.matches getters.
• Added proper media query parsing in MediaList, using css-tree instead of naive comma-splitting. Invalid queries become "not all" per spec.
• Added cssKeyframeRule.keyText getter/setter validation.
• Added cssStyleRule.selectorText setter validation: invalid selectors are now rejected.
• Added styleSheet.ownerNode, styleSheet.href, and styleSheet.title.
• Added bad port blocking per the fetch specification, preventing fetches to commonly-abused ports.
• Improved Document initialization performance by lazily initializing the CSS selector engine, avoiding ~0.5 ms of overhead per Document. (@​thypon)
• Fixed a memory leak when stylesheets were removed from the document.
• Fixed CSSStyleDeclaration modifications to properly trigger custom element reactions.
• Fixed nested @media rule parsing.
• Fixed CSSStyleSheet's "disallow modification" flag not being checked in all mutation methods.
• Fixed XMLHttpRequest's response getter returning parsed JSON during the LOADING state instead of null.
• Fixed getComputedStyle() crashing in XHTML documents when stylesheets contained at-rules such as @page or @font-face.
• Fixed a potential hang in synchronous XMLHttpRequest caused by a race condition with the worker thread's idle timeout.

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[gemini-code-assist]

Code Review

This pull request updates the jsdom dependency to the new major version 29.0.0. Key changes in this version include a breaking change in the required Node.js version (v22.13.0+ is now the minimum for the v22 line) and a significant internal overhaul of the CSSOM implementation, which removes previous dependencies like @acemir/cssom and cssstyle. While this update brings numerous improvements and bug fixes, the substantial nature of the CSSOM changes means that CI results should be carefully reviewed to ensure there are no unexpected regressions in rendering or behavior within the test environment.

[alan-agius4]

This PR was merged into the repository. The changes were merged into the following branches:

• main: dcf7986