Bump pnpm/action-setup from 4 to 6

Bumps [pnpm/action-setup](https://github.com/pnpm/action-setup) from 4 to 6.
- [Release notes](https://github.com/pnpm/action-setup/releases)
- [Commits](https://github.com/pnpm/action-setup/compare/v4...v6)

---
updated-dependencies:
- dependency-name: pnpm/action-setup
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/e2e-cache.yml

@@ -46,7 +46,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - name: Install pnpm
-        uses: pnpm/action-setup@v4
+        uses: pnpm/action-setup@v6
         with:
           version: 6.10.0
       - name: Generate pnpm file

__tests__/official-installer.test.ts

@@ -162,14 +162,7 @@ describe('setup-node', () => {
         'mocktoken'
       );
       expect(versions).toBeDefined();
-      const match = await tc.findFromManifest(
-        versionSpec,
-        true,
-        versions,
-        // `archFilter` parameter of `findFromManifest` function has a default value of `os.arch()`.
-        // However, default parameters cannot be replaced by `spyOn` function of Jest.
-        osm.arch()
-      );
+      const match = await tc.findFromManifest(versionSpec, true, versions);
       expect(match).toBeDefined();
       expect(match?.version).toBe(expectedVersion);
       expect((match as any).lts).toBe(expectedLts);