Rollup merge of #57659 - jethrogb:jb/release-manifest, r=alexcrichton
Rollup merge of #57659 - jethrogb:jb/release-manifest, r=alexcrichton

Fix release manifest generation

r? @alexcrichton

graydon/rust,graydon/rust,graydon/rust,aidancully/rust,aidancully/rust,aidancully/rust,graydon/rust,graydon/rust,graydon/rust,aidancully/rust,aidancully/rust,aidancully/rust