Improve NuGet restore loop detection

Recently in #9051 we added NuGet restore loop detection that handled the case where project data alternated between two states, similar to ABABABAB...

In [AB#1786477](https://devdiv.visualstudio.com/0bdbc590-a062-4c3f-b0f6-9383f67865ee/_workitems/edit/1786477), another endless restore was reported where the sequence of states constantly changes without repeating (more like ABCDEFGHIJ...).

We should identify this scenario too, break the runaway restores and notify the user (as we do for the cycle case).

To repro:

1. Create a new Console App project.
1. Add the following property to the `.csproj`:
```xml
1.0-preview$([System.DateTime]::Now.ToString(`yyMMddHHmmss`))
```