Update dependency rollup-watch to v4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	References
rollup-watch	devDependencies	major	2.5.0 -> 4.3.1	source

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Release Notes

rollup/rollup-watch

v4.3.1

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• Clean up listeners on close

v4.3.0

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• Stop watching when process is killed (#​30)

v4.2.0

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• Support include and exclude options (#​22)

v4.1.0

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• Rename options.watch.useChokidar to options.watch.chokidar (#​52)
• Allow passing chokidar options via options.watch.chokidar (i.e. can be true or {...}) (#​52)

v4.0.0

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• On error, watch files from last successful build (#​38)
• Fix bug preventing chokidar from ever working (#​45)
• Add options.watch.useChokidar option

v3.2.2

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• Fix missing require-relative (#​41)
• Prevent infinite build loops

v3.2.1

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• Published mistakenly

v3.2.0

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• options.targets, not options.target (#​36)
• Use chokidar if available (#​39)

v3.1.0

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• Add watcher.close() method
• Resolve symlinks before watching (#​32)

v3.0.0

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• Don't check for version updates (#​12, #​26, #​34)
• Fix initial flag (#​13)
• Retain options object (#​24)
• Don't watch generated bundle (#​15)

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