Missing changelog for versions up to 3.3.0

[cailloumajor]

Hello, versions 3.4.0 and 3.4.1 were published on crates.io, but I cannot find the changelogs associated with those versions in the usual place (releases page).

[abr-egn]

Version 3.4.0 was skipped due to some malfunctioning release automation; bear with us while we get things sorted out for 3.4.1 🙂

[isabelatkinson]

@cailloumajor thanks for your patience! The release notes are now live: https://github.com/mongodb/mongo-rust-driver/releases/tag/v3.4.1