Bump tool dependencies

[saskliutas]

Bumped dependencies in test-viewer, learning-snippets, performance-tests and test-utilities.

Updated property-grid and tree-widget screenshots due to itwinui-react version bump changed expander icon size.

[github-actions]

Tree-Widget benchmark

Benchmark suite	Current: e2e670b	Previous: 5b928bf	Deviation	Status
categories tree creates initial filtered view for 50k items	1609.04 ms	1838.23 ms	-12.47%	✅
categories tree creates initial filtered view for 50k items (P95 of main thread blocks)	459 ms	454 ms	1.10%	〰️
categories tree changing definition container visibility changes visibility for 50k subCategories	8141.56 ms	6926.63 ms	17.54%	🚨
categories tree changing definition container visibility changes visibility for 50k subCategories (P95 of main thread blocks)	68 ms	64 ms	6.25%	〰️
categories tree changing definition container visibility changes visibility for 50k categories	122674.37 ms	11718.19 ms	946.87%	🚨
categories tree changing definition container visibility changes visibility for 50k categories (P95 of main thread blocks)	1976 ms	139 ms	1321.58%	🚨
models tree creates initial filtered view for 50k target items	906.06 ms	1099.84 ms	-17.62%	✅
models tree creates initial filtered view for 50k target items (P95 of main thread blocks)	138 ms	121 ms	14.05%	〰️
models tree validates categories visibility for imodel with 50k categories	8366.84 ms	11753.46 ms	-28.81%	✅
models tree validates categories visibility for imodel with 50k categories (P95 of main thread blocks)	89 ms	82 ms	8.54%	〰️
models tree changing model visibility changes visibility for 50k elements	2596.28 ms	4108.49 ms	-36.81%	✅
models tree changing model visibility changes visibility for 50k elements (P95 of main thread blocks)	0 ms	133 ms	-100%	✅
models tree changing category visibility changes visibility for 50k elements	2812.9 ms	4276.17 ms	-34.22%	✅
models tree changing category visibility changes visibility for 50k elements (P95 of main thread blocks)	0 ms	102 ms	-100%	✅
models tree changing per-model-category override changes visibility for 50k elements	2697.99 ms	3997.4 ms	-32.51%	✅
models tree changing per-model-category override changes visibility for 50k elements (P95 of main thread blocks)	0 ms	69 ms	-100%	✅
models tree changing element visibility changes only parent nodes visibility with 50k elements	4764.14 ms	7601.06 ms	-37.32%	✅
models tree changing element visibility changes only parent nodes visibility with 50k elements (P95 of main thread blocks)	84 ms	127 ms	-33.86%	〰️

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[Copilot]

Pull request overview

This PR updates dependencies across multiple packages and applications in the repository, primarily focusing on bumping versions of iTwin libraries, ESLint tooling, and various development dependencies.

Changes:

• Updated iTwin core libraries and tools to version 5.5.2 across test-viewer, learning-snippets, performance-tests, and test-utilities
• Upgraded ESLint and related plugins to newer versions
• Updated jsdom API calls to use the new forwardTo method with jsdomErrors: "none" option
• Reformatted interface declarations to improve readability

Reviewed changes

Copilot reviewed 14 out of 19 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
packages/itwin/tree-widget/src/tree-widget-react/components/trees/models-tree/ModelsTreeComponent.tsx	Reformatted interface declaration for better readability
packages/itwin/tree-widget/src/tree-widget-react/components/trees/imodel-content-tree/IModelContentTreeComponent.tsx	Reformatted interface declaration for better readability
packages/itwin/tree-widget/src/tree-widget-react/components/trees/external-sources-tree/ExternalSourcesTreeComponent.tsx	Reformatted interface declaration for better readability
packages/itwin/tree-widget/src/tree-widget-react/components/trees/categories-tree/CategoriesTreeComponent.tsx	Reformatted interface declaration for better readability
packages/itwin/test-utilities/package.json	Updated development dependencies to newer versions
packages/itwin/property-grid/src/property-grid-react/components/PropertyGridContent.tsx	Reformatted interface declaration for better readability
package.json	Updated root package manager and development dependencies
apps/test-viewer/vite.config.mts	Updated SCSS deprecation silencing configuration
apps/test-viewer/src/components/App.tsx	Improved error handling to support non-Error objects
apps/test-viewer/package.json	Updated dependencies to newer versions
apps/performance-tests/src/setup.ts	Updated jsdom VirtualConsole API call
apps/performance-tests/package.json	Updated development dependencies and reorganized package order
apps/learning-snippets/src/setup.ts	Updated chai import and jsdom VirtualConsole API call
apps/learning-snippets/package.json	Updated dependencies to newer versions and reorganized package order

Files not reviewed (2)

• packages/itwin/test-utilities/pnpm-lock.yaml: Language not supported
• pnpm-lock.yaml: Language not supported

Comments suppressed due to low confidence (1)

apps/performance-tests/package.json:1

• TypeScript version ~5.9.3 does not exist. TypeScript's latest stable version as of my knowledge cutoff (January 2025) is 5.8.x. Please verify this version exists or use a valid version such as ~5.8.0.

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[saskliutas]

Looks like performance test slowdowns in categories tree coming from changeCategoryDisplay performance degradation in newer itwinjs-core version. iTwin/itwinjs-core#8964