Update dependency com.ibm.icu:icu4j to v76

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
com.ibm.icu:icu4j (source)	75.1 -> 76.1

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Release Notes

unicode-org/icu (com.ibm.icu:icu4j)

### [`v76.1`](https://redirect.github.com/unicode-org/icu/compare/release-75-1...release-76-1) [Compare Source](https://redirect.github.com/unicode-org/icu/compare/release-75-1...release-76-1)

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Configuration

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