Try setting RollForward on FSharpLint.Console to latestMajor

refs fsprojects#687, whereby it appears to not be able to process .NET 7 or 8 projects when running on .NET 6, and always using the latest version seems to help.

It looks like the current roll foward behaviour was added for fsprojects#519 to fix issues where only a newer version than the tool was built with is available, but this change would make it just use the latest all the time (so for example, if you have 6 and 8 installed, then it will use 8 all the time).

src/FSharpLint.Console/FSharpLint.Console.fsproj

@@ -12,7 +12,7 @@
     <AssemblyName>dotnet-fsharplint</AssemblyName>
     <RootNamespace>FSharpLint.Console</RootNamespace>
     <IsPackable>true</IsPackable>
-    <RollForward>Major</RollForward>
+    <RollForward>latestMajor</RollForward>
   </PropertyGroup>
 
   <ItemGroup>