ChemometricsTools prevents installation of DataFrames 1.1.1

[lnacquaroli]

Hi there, just noticed that in a fresh installation of Julia, that adding the ChemometricsTools lowers the DataFrames package to 0.22.7, due to inconsistency in CSV versions:

(@v1.6) pkg> add ChemometricsTools
   Resolving package versions...
   Installed Rmath ──────────── v0.6.1
   Installed Netpbm ─────────── v1.0.1
   Installed LearnBase ──────── v0.3.0
   Installed Rmath_jll ──────── v0.2.2+2
   Installed PenaltyFunctions ─ v0.2.2
   Installed GeometryBasics ─── v0.3.10
   Installed StructArrays ───── v0.4.2
   Installed ColorVectorSpace ─ v0.8.7
   Installed ImageCore ──────── v0.8.22
  Downloaded artifact: Rmath
    Updating `~/.julia/environments/v1.6/Project.toml`
  [a9718f02] + ChemometricsTools v0.5.15
  [a93c6f00] ↓ DataFrames v1.1.1 ⇒ v0.22.7