doc: add release history for release v0.4.0 - #969

doc: add release history for release v0.4.0#969

wgtmac merged 2 commits into

apache:mainapache/iceberg-cpp:mainfrom

manuzhang:docs-0.4.0-releasemanuzhang/iceberg-cpp:docs-0.4.0-releaseCopy head branch name to clipboard