fix(deps): update jetty monorepo to v12 (release/4.2.x) (major)

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.eclipse.jetty:jetty-bom (source)	11.0.24 -> 12.0.15
org.eclipse.jetty:jetty-bom (source)	10.0.24 -> 12.0.15
org.eclipse.jetty:jetty-http (source)	9.4.56.v20240826 -> 12.0.15
org.eclipse.jetty:jetty-bom (source)	9.4.56.v20240826 -> 12.0.15

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[renovate]

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