On November 8, 2022, Microsoft released .Net 7. After getting Visual Studio Professional 17.4 installed, updating to .Net 7 was fairly painless.
Changing the obligatory TargetFramework entry in all the projects:
Updating the package references from 6.0.0 to 7.0.0:
<PackageReference Include="Microsoft.Extensions.Hosting" Version="7.0.0" />
Updating the github action yml file to use the new dotnet version:
Azure even had all the website hosting ready so I didn't have to wait for anyone to deploy .Net 7. Microsoft does list some incompatabilities in .Net 7, but it's not a long list. This has probably been the easiest migration since .net46 to .net48.