ci: disable package manager cache in GitHub workflows

[chenjiahan]

Summary

Although the Rsbuild repository uses pnpm, actions/setup-node automatically enables caching (see https://github.com/web-infra-dev/rsbuild/actions/runs/18767609069/job/53545564346?pr=6423), which is inconsistent with its documentation.

This PR explicitly disables caching to avoid this issue.

Related Links

https://github.com/actions/setup-node?tab=readme-ov-file#breaking-changes-in-v6

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).

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[Copilot]

Pull Request Overview

This PR disables automatic package manager caching in GitHub Actions workflows to address inconsistent behavior introduced in actions/setup-node v6.0.0, where caching is unexpectedly enabled by default despite documentation suggesting otherwise.

Key Changes:

• Added explicit package-manager-cache: false configuration to all actions/setup-node steps across workflow files

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
.github/workflows/test.yml	Disabled package manager cache in three separate test jobs
.github/workflows/release.yml	Disabled package manager cache in the release job
.github/workflows/lint.yml	Disabled package manager cache in the lint job
.github/workflows/ecosystem-ci.yml	Disabled package manager cache in the ecosystem CI job

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