Bump Microsoft.VisualStudio.Azure.Containers.Tools.Targets from 1.20.0 to 1.21.0 in /templates/src#13

dependabot[bot] wants to merge 1 commit intomainaccelist/exam-frontend-intermediate-backend:mainfrom

dependabot/nuget/templates/src/Microsoft.VisualStudio.Azure.Containers.Tools.Targets-1.21.0accelist/exam-frontend-intermediate-backend:dependabot/nuget/templates/src/Microsoft.VisualStudio.Azure.Containers.Tools.Targets-1.21.0Copy head branch name to clipboard