Upgrade protobuf version

[joca-bt]

Can you update the protobuf version? Both in MODULE.bazel and the dep used by the jar.

WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
WARNING: sun.misc.Unsafe::arrayBaseOffset has been called by com.google.protobuf.UnsafeUtil$MemoryAccessor (file:bazel-diff.jar)
WARNING: Please consider reporting this to the maintainers of class com.google.protobuf.UnsafeUtil$MemoryAccessor
WARNING: sun.misc.Unsafe::arrayBaseOffset will be removed in a future release

protocolbuffers/protobuf#20760

[maxwellE]

@joca-bt It looks like to do this we would need to drop bazel 7 support, I am hesitant to do that yet