CompatHelper: add new compat entry for PkgVersion at version 0.3, (keep existing compat)

Author: CompatHelper Julia

Project.toml

@@ -60,6 +60,7 @@ LsqFit = "0.12"
 MD5 = "0.2"
 Missings = "0.4"
 MultivariateStats = "0.8"
+PkgVersion = "0.3"
 Plots = "1"
 Query = "1"
 RvSpectML = ">=0.2.3"