factoextra package updates to fviz_nbclust and hcut

[tmweigand]

I recently updated the build to use R4.5 which introduced a new issue with factoextra and hcut. Specifically, the error is
`Error in hcut():
! k must be a single integer >= 2
Backtrace:
▆

1. └─factoextra::fviz_nbclust(...)
2. └─global FUNcluster(x, i, ...)

3. └─factoextra::hcut(x, k = k, ...)` 
   

To circumvent this I am forcing the install to use version = "1.0.7" of factoextra. This error should be addressed and that package specification should be removed.