Update protobuf.version from v3.25.3 to v4 (major)

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
com.google.protobuf:protobuf-java-util (source)	3.25.3 -> 4.26.1
com.google.protobuf:protobuf-java (source)	3.25.3 -> 4.26.1

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