Virtual-environments: Update .NET Core SDK to 3.1.202

[cygnim]

Tool information

• Tool name: .NET Core 3.1
• Tool license: MIT
• Add or update? Update
• Desired version: SDK 3.1.202
• Approximate size: 121 MB

Area for Triage:

Question, Bug, or Feature?:
This version of the .NET SDK addresses security vulnerabilities in .NET Core and was released May 12.

Virtual environments affected

• [x] macOS 10.15
• [x] Ubuntu 16.04 LTS
• [x] Ubuntu 18.04 LTS
• [x] Windows Server 2016 R2
• [x] Windows Server 2019

Can this tool be installed during the build?
I think so

Tool installation time in runtime
< 5 mins

Are you willing to submit a PR?
Sorry, not at this time.

[al-cheb]

Hello, @cygnim

Windows images already have .Net 3.1.202 pre-installed:
https://github.com/actions/virtual-environments/blob/releases/win19/20200517/images/win/Windows2019-Readme.md
https://github.com/actions/virtual-environments/blob/releases/win16/20200517/images/win/Windows2016-Readme.md

Ubuntu images are being deploying with Net 3.1.202 and I hope will be available soon:
https://github.com/actions/virtual-environments/releases/tag/ubuntu18%2F20200518.1
https://github.com/actions/virtual-environments/releases/tag/ubuntu16%2F20200517.1

macOS already contains all changes and will be available on the next week 05/27-28.

[cygnim]

@al-cheb
I swear the Windows images did not have it when I posted! :)

Thanks for the update!

[al-cheb]

@cygnim,
Updates macOS: Today we have deployed macOS with .Net 3.1.202 - https://github.com/actions/virtual-environments/pull/918

[al-cheb]

@cygnim, All images have been deployed with Net 3.1.202:

Windows Server 2016 - https://github.com/actions/virtual-environments/blob/master/images/win/Windows2016-Readme.md

Windows Server 2019 - https://github.com/actions/virtual-environments/blob/master/images/win/Windows2019-Readme.md

Ubuntu1604 - https://github.com/actions/virtual-environments/blob/master/images/linux/Ubuntu1604-README.md

Ubuntu1804 - https://github.com/actions/virtual-environments/blob/master/images/linux/Ubuntu1804-README.md

macOS1015 - https://github.com/actions/virtual-environments/blob/master/images/macos/macos-10.15-Readme.md