fix: wrong the scroll position of scrollToItem when working with dynamic size

[wellyshen]

• fix: wrong the scroll position of scrollToItem when working with dynamic size

[changeset-bot]

🦋 Changeset detected

Latest commit: ddc2846

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
react-cool-virtual	Patch

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[github-actions]

Size Change: -343 B (-2%)

Total Size: 19.2 kB

Filename	Size	Change
dist/index.cjs.development.js	4.48 kB	-92 B (-2%)
dist/index.cjs.production.min.js	2.74 kB	-38 B (-1%)
dist/index.esm.js	4.42 kB	-89 B (-2%)
dist/index.umd.development.js	4.64 kB	-91 B (-2%)
dist/index.umd.production.min.js	2.83 kB	-33 B (-1%)

ℹ️ View Unchanged

Filename	Size	Change
dist/index.js	136 B	0 B

_{compressed-size-action}

[coveralls]

Pull Request Test Coverage Report for Build 903441152

• 0 of 4 (0.0%) changed or added relevant lines in 1 file are covered.
• 2 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.07%) to 2.133%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/useVirtual.ts	0	4	0.0%

Files with Coverage Reduction	New Missed Lines	%
src/useVirtual.ts	2	0%

Totals
Change from base Build 903203495:	0.07%
Covered Lines:	7
Relevant Lines:	256

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💛 - Coveralls