Update dependency com.fasterxml.jackson.module:jackson-module-kotlin from 2.15.1 to 2.21.4

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This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
com.fasterxml.jackson.module:jackson-module-kotlin	2.15.1 → 2.21.4

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Note

Low Risk
Single version-catalog dependency bump; Jackson is only used in tests for JSON parsing, not production security or data paths.

Overview
Bumps the shared jackson version catalog entry from 2.15.1 to 2.21.4, which updates jackson-module-kotlin everywhere it is referenced (notably test dependencies via with-testing and BIP39 JSON fixtures).

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[cursor]

Jackson 2.21 incompatible with project's Kotlin 1.7

High Severity

The jackson version is being bumped to 2.21.1, but Jackson module kotlin 2.18+ dropped support for Kotlin 1.7.x and requires Kotlin 1.8 or higher. The project still uses kotlin = "1.7.21" (line 2), creating a dependency incompatibility that may cause compilation failures or runtime errors.

 

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Cursor Bugbot has reviewed your changes and found 1 potential issue.

There are 2 total unresolved issues (including 1 from previous review).

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