fix(deps): update dependency @netlify/build to ^15.11.3

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@netlify/build	^15.11.2 -> ^15.11.3

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Release Notes

netlify/build

v15.11.3

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[github-actions]

📊 Benchmark results

Comparing with 99f239f

Package size: 330 MB

(no change)

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