Fix sideEffects declaration #1452

Job	Run time
update-deps / update	44s
build (22)	50s
build (24)	37s
npm-publish-dev / prerelease-check	5s
Dependabot	0s
npm-publish-latest	0s
github-release	0s
npm-publish-dev / npm-publish-build	0s
update-deps / update	49s
build (24)	42s
build (22)	39s
npm-publish-dev / prerelease-check	10s
Dependabot	0s
npm-publish-latest	0s
github-release	-1s
npm-publish-dev / npm-publish-build	0s
	4m 35s

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