Update prost-types requirement from 0.11.9 to 0.12.0 in /calendar-service#390

dependabot[bot] wants to merge 1 commit intomainsamgozman/validity.red:mainfrom

dependabot/cargo/calendar-service/main/prost-types-0.12.0samgozman/validity.red:dependabot/cargo/calendar-service/main/prost-types-0.12.0Copy head branch name to clipboard