[release/3.1.2xx] Update dependencies from nuget/nuget.client

[dotnet-maestro]

This pull request updates the following dependencies

From https://github.com/NuGet/NuGet.Client

• Subscription: 3c9d65bb-d2bc-4c69-c5d7-08d76fa9c820
• Build: 5.5.0.6473
• Date Produced: 2/26/2020 12:52 AM
• Commit: 4ba7bfa82f894ec32a554ca8d2df143675c85735
• Branch: refs/heads/release-5.5.x
• Updates:
  • NuGet.Build.Tasks -> 5.5.0-rtm.6473

[dotnet-maestro]

Auto-Merge Status

This pull request has not been merged because Maestro++ is waiting on the following merge policies.

• ❌ Standard Merge Policies Unsuccessful checks: .NET Core CLI CI (Build Linux Build_LinuxPortable_Release_x64)
• ✔️ Standard Merge Policies Succeeded - No reviews have requested changes.

[nkolev92]

fyi @wli3

[dotnet-maestro]

Auto-Merge Status

This pull request has been merged because the following merge policies have succeeded.

• ✔️ Standard Merge Policies Succeeded - Successful checks: .NET Core CLI CI, .NET Core CLI CI (Build Linux Build_LinuxPortable_Release_x64), .NET Core CLI CI (Build Linux Build_CentOS_7_1_Debug_x64), .NET Core CLI CI (Build Linux Build_LinuxPortable_NoSuffix_Release_x64), .NET Core CLI CI (Build Linux Build_Linux_musl_Debug_x64), .NET Core CLI CI (Build Linux Build_Rhel_6_Debug_x64), .NET Core CLI CI (Build Linux Build_Rhel_7_2_Release_x64), .NET Core CLI CI (Build Linux Build_Debian_jessie_Debug_x64), .NET Core CLI CI (Build Linux Build_OpenSUSE_42_3_Debug_x64), .NET Core CLI CI (Build Linux Build_Fedora_27_Debug_x64), .NET Core CLI CI (Build Linux Build_Ubuntu_18_04_Debug_x64), .NET Core CLI CI (Build Darwin Build_Release), .NET Core CLI CI (Build Linux Build_Ubuntu_16_04_Debug_x64), .NET Core CLI CI (Build Linux Build_Ubuntu_14_04_Release_x64), .NET Core CLI CI (Build Windows_NT Build_Release_x64), .NET Core CLI CI (Build Windows_NT Build_DropSuffix_Release_x64), .NET Core CLI CI (Build Windows_NT Build_ES_Debug_x64), .NET Core CLI CI (Build Windows_NT Build_Debug_x86)
• ✔️ Standard Merge Policies Succeeded - No reviews have requested changes.