Update toml to fix a regression in backcompat
Update toml to fix a regression in backcompat

Related to rust-lang/rust#40956

eminence/cargo,achanda/cargo,eminence/cargo,vojtechkral/cargo,tshepang/cargo,eminence/cargo,nipunn1313/cargo,durka/cargo,rust-lang/cargo,durka/cargo,achanda/cargo,tsurai/cargo,nipunn1313/cargo,tsurai/cargo,rustyhorde/cargo,rustyhorde/cargo,rustyhorde/cargo,rust-lang/cargo,tsurai/cargo,nipunn1313/cargo,durka/cargo,rust-lang/cargo,tshepang/cargo,tshepang/cargo,durka/cargo,nipunn1313/cargo,vojtechkral/cargo,vojtechkral/cargo,achanda/cargo,vojtechkral/cargo,achanda/cargo,tsurai/cargo,tshepang/cargo,tsurai/cargo,rust-lang/cargo,rustyhorde/cargo,eminence/cargo