[Fred-Wu]

Restore any::lintr and any::styler in the test job's R dependencies so Interactive linting and formatting tests work with a fresh R library.

Both packages were explicitly installed before #1932. That PR initially preserved them when switching to setup-r-dependencies, but commit 6a4f2a6 removed them. They are optional (Suggests) dependencies of languageserver, and the dependency installation did not include them.

• The final PR run restored older R package caches on both Ubuntu and macOS. Their installed-package listings included lintr 3.4.0 and styler 1.11.0, masking the missing explicit dependencies.
• The post-merge run reported R package cache misses on both platforms. Its fresh libraries contained languageserver but neither lintr nor styler. Five diagnostic tests timed out, and formatting reported Backend 'styler' requires styler >= 1.5.1. The seventh failure was a draft-preservation assertion, likely cascading from input left behind by earlier failed tests.
• The merge commit and final PR head have the same Git tree. The cache contents, rather than a merge-time source change, explain the different dependency availability.
• Windows stayed green because the affected Interactive integration suite is skipped there. Node and plot lifecycle tests passed on both failing platforms.

[renkun-ken]

Reviewed 4134033. The explicit any::lintr and any::styler entries address the missing optional dependencies; I found no issue with the change.

The Ubuntu retry missed the R package cache, installed lintr 3.4.0 and styler 1.11.0, and passed the Interactive linting and formatting tests. Windows, build, format, and lint checks also passed.

The first macOS attempt also installed both packages after a cache miss, but five Interactive tests failed, including input linting and formatting timeouts. The macOS retry is still running. The cause of those failures is unclear from the logs, so please check the retry before merging.