ARROW-16983: [Go][Parquet] fix EstimatedDataEncodedSize of DeltaByteArrayEncoder #13522
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DeltaByteArrayEncoderextendsencoderwhich calculatesEstimatedDataEncodedSize()by callingLen()on itssink.DeltaByteArrayEncoderhowever does not write its data out to sink, instead writing out toprefixEncoderandsuffixEncoder, causing EstimatedDataEncodedSize to always return zero, resulting inFlushCurrentPagenever being called.