Update dependency rollup to v4.2.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
rollup (source)	4.1.5 -> 4.2.0

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Release Notes

rollup/rollup (rollup)

v4.2.0

Compare Source

2023-10-31

Features

• Run parsing in multiple threads and introduce parseAstAsync helper function (#​5202)

Pull Requests

• #​5202: perf: introduce parseAstAsync and parallelize parsing AST (@​sapphi-red)

v4.1.6

Compare Source

2023-10-31

Bug Fixes

• Fix a bug where emtpy block comments in certain positions could freeze Rollup (#​5231)

Pull Requests

• #​5228: build: ensure rust toolchain components for linting are installed (@​jerome-benoit)
• #​5231: Render emtpy block comments after tree-shaken statements (@​lukastaegert)
• #​5232: Revert specifying rustfmt and clippy in toolchain file as it breaks REPL build (@​lukastaegert)

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