Sergii Tkachenko

[CLEANUP chore-dependencies] Major npm dependency upgrades

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#### What's this PR do? - Node modules upgrade: ``` devDependencies name range from to url ◉ css-loader latest 3.6.0 ❯ 5.2.4 https://github.com/webpack-contrib/css-loader ◉ eslint-plugin-ava latest 10.5.0 ❯ 12.0.0 https://github.com/avajs/eslint-plugin-ava#readme...

**Describe the solution you'd like** Feature suggestion for Pagerbeauty: make the on-call thing orange instead of red if all active incidents are low-priority. Thanks, @TBoshoven for the idea!

xDS interop: Move k8s-specific logic out of the test app

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Separates xDS Test Client/Server (represent an interface to corresponding workload running remotely) from their runners (kubernetes-specific logic to provision the workloads with prerequisites). This is a refactoring, should not change...

WIP. An attempt parallel to https://github.com/grpc/grpc-java/pull/8853 and https://github.com/grpc/grpc-java/pull/8241, but with latest netty `4.1.77.Final`.

WIP. An attempt parallel to https://github.com/grpc/grpc-java/pull/8241, but with latest netty `4.1.72.Final`.

Upgrade to openapi-generator >= v6.4.0: `DeprecationWarning: HTTPResponse.getheaders() is deprecated`

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**What happened (please include outputs or screenshots)**: Certain k8s API calls (f.e. deleting a namespace) result in the following deprecation warnings: ``` venv-test/lib/python3.9/site-packages/kubernetes/client/rest.py:44: DeprecationWarning: HTTPResponse.getheaders() is deprecated and will be...

> [!CAUTION] > Work in progress, do not merge. Fixes #10849

buildscripts: Attempting to speed up Linux Artifacts builds

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Attempting to speed up Linux Artifacts builds.

determining the baseline for Linux Artifacts build improvements at #10820

> [!WARNING] > This is work-in-progress. Ready for review when promoted from a PR draft