Add JSON single-value serialization for timestamp_ns and timestamptz_ns - #3855

Add JSON single-value serialization for timestamp_ns and timestamptz_ns#3855

takayoshi-makabe wants to merge 2 commits into

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takayoshi-makabe:fix-nano-timestamp-json-conversiontakayoshi-makabe/iceberg-python:fix-nano-timestamp-json-conversionCopy head branch name to clipboard