Add support for .NET 6 projects with Docker image

.azure-build.yml

@@ -15,9 +15,9 @@ variables:
   DOTNET_SKIP_FIRST_TIME_EXPERIENCE: true
 steps:
 - task: DotNetCoreInstaller@1
-  displayName: 'Use .NET Core sdk 5.0.x'
+  displayName: 'Use .NET Core sdk 6.0.x'
   inputs:
-    version: 5.0.x
+    version: 6.0.x
 
 - bash: echo NugetVersion is $NugetVersion; export NugetVersion
   displayName: 'export NugetVersion into env vars'

CodeAnalysisRules.ruleset

@@ -2,7 +2,8 @@
 <RuleSet Name="CodeProjects" Description="Code analysis rules for NuKeeper Code." ToolsVersion="15.0">
   <Rules AnalyzerId="Microsoft.Analyzers.ManagedCodeAnalysis" RuleNamespace="Microsoft.Rules.Managed">
     <Rule Id="CA1303" Action="None" />
+	<Rule Id="CA1305" Action="None" />
     <Rule Id="CA2000" Action="None" />
     <Rule Id="CA2007" Action="None" />
   </Rules>
-</RuleSet>
+</RuleSet>

Docker/SDK6.0/Dockerfile

@@ -0,0 +1,5 @@
+FROM mcr.microsoft.com/dotnet/sdk:6.0-focal
+ARG NUKEEPER_VERSION=0.35.0
+RUN dotnet tool install --global NuKeeper --version $NUKEEPER_VERSION
+ENV PATH="${PATH}:/root/.dotnet/tools"
+ENTRYPOINT ["nukeeper"]

NuKeeper/NuKeeper.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp3.1;net5.0</TargetFrameworks>
+    <TargetFrameworks>netcoreapp3.1;net5.0;net6.0</TargetFrameworks>
     <OutputType>Exe</OutputType>
     <PackAsTool>true</PackAsTool>
     <PackageId>nukeeper</PackageId>