7.0.0 Release

[nblumhardt]

• 313 - update Serilog.Settings.Configuration dependency (@julian94)

• Use VS2022 image for CI builds (@SimonCropp)

• 325 - pin to ASP.NET Core v7 (@nblumhardt)

[nblumhardt]

Ready to go! Just needs upstream non-prerelease versions of the v7 package dependencies 👍