Auto merge of #9396 - ehuss:changelog-1.52-beta, r=alexcrichton
Auto merge of #9396 - ehuss:changelog-1.52-beta, r=alexcrichton

Update changelog for 1.52 beta changes.

A few things were reverted on the beta branch.

nipunn1313/cargo,nipunn1313/cargo,rustyhorde/cargo,rustyhorde/cargo,rustyhorde/cargo,eminence/cargo,rustyhorde/cargo,rust-lang/cargo,nipunn1313/cargo,rust-lang/cargo,rust-lang/cargo,eminence/cargo,rust-lang/cargo,nipunn1313/cargo,eminence/cargo,eminence/cargo