perf: Don't preserve names for unlist()

[IndrajeetPatil]

This should be slightly faster than using the unlist() default arguments.

[codecov-commenter]

Codecov Report

Merging #998 (2d6fc68) into main (4049885) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

❗ Current head 2d6fc68 differs from pull request most recent head 2d7075a. Consider uploading reports for the commit 2d7075a to get more accurate results

@@            Coverage Diff             @@
##             main     #998      +/-   ##
==========================================
- Coverage   90.24%   90.23%   -0.02%     
==========================================
  Files          47       47              
  Lines        2697     2694       -3     
==========================================
- Hits         2434     2431       -3     
  Misses        263      263              

Impacted Files	Coverage Δ
R/utils-cache.R	100.00% <ø> (ø)
R/nest.R	100.00% <100.00%> (ø)
R/parse.R	88.09% <100.00%> (-0.15%)	⬇️
R/stylerignore.R	100.00% <100.00%> (ø)
R/transform-block.R	100.00% <100.00%> (ø)
R/transform-files.R	97.29% <100.00%> (ø)
R/utils-files.R	100.00% <100.00%> (ø)
R/utils.R	88.46% <100.00%> (-0.43%)	⬇️

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[github-actions]

This is how benchmark results would change (along with a 95% confidence interval in relative change) if 897a429 is merged into main:

•   :ballot_box_with_check:cache_applying: 26ms -> 26.1ms [-2.4%, +3%]
•   :ballot_box_with_check:cache_recording: 1.25s -> 1.23s [-4.52%, +0.56%]
•   :ballot_box_with_check:without_cache: 3.25s -> 3.21s [-3.56%, +1.33%]

Further explanation regarding interpretation and methodology can be found in the documentation.

[lorenzwalthert]

@IndrajeetPatil you can merge, please beware that we now use {fledge} for release management and hence I'd suggest to ensure a merge commit message you want to appear in the changeling afterwards.

[krlmlr]

FTR, the PR title will be shown very nicely in NEWS.md . I can soon add a workflow that will bump the version regularly so that we don't need to do this manually.