CompatHelper: bump compat for "DataFrames" to "1.0"

Author: github-actions[bot]

Project.toml

@@ -18,7 +18,7 @@ Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 [compat]
 CSV = "0.6, 0.7, 0.8"
 Combinatorics = "1.0"
-DataFrames = "0.21, 0.22"
+DataFrames = "0.21, 0.22, 1.0"
 DataStructures = "0.17, 0.18"
 Distributions = "0.23, 0.24"
 DocStringExtensions = "0.8"