Update dependency net.javacrumbs.json-unit:json-unit-spring to v4

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
net.javacrumbs.json-unit:json-unit-spring	3.5.0 -> 4.0.0

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Release Notes

lukas-krecan/JsonUnit (net.javacrumbs.json-unit:json-unit-spring)

v4.0.0

• See the documentation changes
• Support for Spring MockMvc AssertJ assertions introduced in Spring 6.2.0
• Support for AssertJ asInstanceOf
• Added REPORTING_DIFFERENCE_AS_NORMALIZED_STRING option
• Opentest4j added as mandatory dependency
• Johnzon upgraded to 2.0.2 (backwards incompatible due to migration from javax to jakarta namespace)
• Fluent assertions marked as deprecated
• Dependency updates

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