Add publishing for .NET 6.0.3xx SDK channels

[riarenas]

• This issue is blocking

Installer repo is trying to publish to this channel

• This issue is causing unreasonable pain

Add publishing configuration for the .NET 6.0.3xx SDK and internal channels.

[riarenas]

#8391 has been merged. Once arcade self-updates through dependency flow it will be possible to publish to the 6.0.3xx SDK channels

[TanayParikh]

Once arcade self-updates through dependency flow it will be possible to publish to the 6.0.3xx SDK channels

@riarenas when would that be / is there a way I can check if it has happened? Just tried triggering an arcade update to dotnet/razor-compiler without much luck.

[riarenas]

I will update this issue when we have received the correct update.

[riarenas]

I can probably trigger an update manually in the next few minutes as it looks like we have a good window to promote arcade right now.

[riarenas]

Once #8398 is merged and mirrored to the internal repo this should be unblocked

[riarenas]

This should be working now, already verified with the installer build that first saw the issue: https://dev.azure.com/dnceng/internal/_build/results?buildId=1566018&view=results. @TanayParikh you should be able to retry any builds that saw the issue now. You don't need to wait for any arcade updates as the publishing pipeline only depends on the arcade repo itself.