Bump Verify from 28.7.1 to 28.8.1 in /src#628

dependabot[bot] merged 1 commit intomainVerifyTests/Verify.ImageSharp:mainfrom

dependabot/nuget/src/Verify-28.8.1VerifyTests/Verify.ImageSharp:dependabot/nuget/src/Verify-28.8.1Copy head branch name to clipboard