⬆️ Update vaadin.version to v24.4.2

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
com.vaadin:vaadin-maven-plugin (source)	24.4.1 -> 24.4.2
com.vaadin:vaadin-bom (source)	24.4.1 -> 24.4.2

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