Use .NET 7 RTM.

Author: bgrainger

appveyor.yml

@@ -11,7 +11,7 @@ install:
   - ps: Invoke-WebRequest -Uri "https://dot.net/v1/dotnet-install.ps1" -OutFile "install-dotnet.ps1"
   - ps: .\install-dotnet.ps1 -Channel 3.1 -InstallDir "dotnetcli"
   - ps: .\install-dotnet.ps1 -Channel 5.0 -InstallDir "dotnetcli"
-  - ps: .\install-dotnet.ps1 -Channel 7.0 -Quality preview -InstallDir "dotnetcli"
+  - ps: .\install-dotnet.ps1 -Channel 7.0 -InstallDir "dotnetcli"
 build_script:
 - dotnet --info
 before_test:

azure-pipelines.yml

@@ -1,5 +1,5 @@
 variables:
-  DotNetCoreSdkVersion: '7.0.100-rc.2.22477.23'
+  DotNetCoreSdkVersion: '7.x'
   NUGET_PACKAGES: '$(Pipeline.Workspace)/.nuget/packages'
 
 jobs: