Deps: Bump AWSSDK.S3 from 4.0.18.7 to 4.0.18.8#67

Menelion merged 2 commits intomasterOire/sharp-sync:masterfrom

dependabot/nuget/src/SharpSync/AWSSDK.S3-4.0.18.8Oire/sharp-sync:dependabot/nuget/src/SharpSync/AWSSDK.S3-4.0.18.8Copy head branch name to clipboard