Update dependency rollup to v2.66.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
rollup (source)	2.66.0 -> 2.66.1

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Release Notes

rollup/rollup

v2.66.1

Compare Source

2022-01-25

Bug Fixes

• Only warn for conflicting names in namespace reexports if it actually causes problems (#​4363)
• Only allow explicit exports or reexports as synthetic namespaces and hide them from namespace reexports (#​4364)

Pull Requests

• #​4362: refactor: convert exportsByName object to map (@​lukastaegert)
• #​4363: Do not warn unnecessarily for namespace conflicts (@​lukastaegert)
• #​4364: Do not expose synthetic namespace export in entries and namespaces (@​lukastaegert)

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