Update toml requirement from 0.5 to 0.6 in /services/autorust#57

dependabot[bot] wants to merge 1 commit intomainheaths/azure-sdk-for-rust:mainfrom

dependabot/cargo/services/autorust/toml-0.6heaths/azure-sdk-for-rust:dependabot/cargo/services/autorust/toml-0.6Copy head branch name to clipboard