chore(deps): update dependency @cloudflare/workers-types to ^4.20250921.0

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This PR contains the following updates:

Package	Change	Age	Confidence
@cloudflare/workers-types	^4.20250920.0 -> ^4.20250921.0

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Release Notes

cloudflare/workerd (@​cloudflare/workers-types)

v4.20250921.0

Compare Source

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Latest commit: 8fcd74a

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Name	Result
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[coveralls]

Pull Request Test Coverage Report for Build 17889283535

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 95.522%

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Totals
Change from base Build 17873476162:	0.0%
Covered Lines:	172
Relevant Lines:	180

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💛 - Coveralls