chore(deps): bump pnpm/action-setup from 4 to 6

[dependabot]

Bumps pnpm/action-setup from 4 to 6.

Release notes

Sourced from pnpm/action-setup's releases.

v6.0.0

Added support for pnpm v11.

v5.0.0

Updated the action to use Node.js 24.

v4.4.0

Updated the action to use Node.js 24.

v4.3.0

What's Changed

• docs: fix the run_install example in the Readme by @​dreyks in pnpm/action-setup#175
• chore: remove unused @types/node-fetch dependency by @​silverwind in pnpm/action-setup#186
• Clarify that package_json_file is relative to GITHUB_WORKSPACE by @​chris-martin in pnpm/action-setup#184
• feat: store caching by @​jrmajor in pnpm/action-setup#188
• refactor: remove star imports by @​KSXGitHub in pnpm/action-setup#196
• fix(ci): exclude macos by @​KSXGitHub in pnpm/action-setup#197

New Contributors

• @​dreyks made their first contribution in pnpm/action-setup#175
• @​silverwind made their first contribution in pnpm/action-setup#186
• @​chris-martin made their first contribution in pnpm/action-setup#184
• @​jrmajor made their first contribution in pnpm/action-setup#188
• @​Boosted-Bonobo made their first contribution in pnpm/action-setup#199

Full Changelog: pnpm/action-setup@v4.2.0...v4.3.0

v4.2.0

When there's a .npmrc file at the root of the repository, pnpm will be fetched from the registry that is specified in that .npmrc file #179

v4.1.0

Add support for package.yaml #156.

Commits

• 0e279bb fix: update pnpm to 11.1.1 (#248)
• 3e83581 fix: drop patchPnpmEnv so standalone+self-update works on Windows (#258)
• 551b42e docs(README): fix cache_dependency_path type (#257)
• 739bfe4 fix: self-update bootstrap to packageManager-pinned version (#233) (#256)
• f61705d chore: add CODEOWNERS
• 7a5507b fix: restore inputs from state in post (#255)
• 1155470 fix: honor devEngines.packageManager.onFail=error (#252) (#254)
• 91ab88e fix: bin_dest output points to self-updated pnpm, not bootstrap (#249)
• e578e19 fix: update pnpm to 11.0.4
• 8912a91 fix: append (not prepend) action node dir to PATH for npm bootstrap (#241)
• Additional commits viewable in compare view

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Summary by cubic

Update GitHub Actions workflows to use pnpm/action-setup@v6 instead of @v4. This brings Node.js 24 runner compatibility, pnpm v11 support, and upstream fixes.

^{Written for commit 13993df. Summary will update on new commits.}

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