CompatHelper: bump compat for DataInterpolations to 6, (keep existing compat)

Author: CompatHelper Julia

Project.toml

@@ -52,7 +52,7 @@ TOML = "fa267f1f-6049-4f14-aa54-33bafae1ed76"
 [compat]
 CSV = "0.7, 0.8, 0.9.11, 0.10"
 DataFrames = "0.20, 0.21, 0.22, 0.23, 0.24, 1, 1.1"
-DataInterpolations = "4.5, 5"
+DataInterpolations = "4.5, 5, 6"
 EchelleCCFs = "0.2.8"
 EchelleInstruments = "0.2.10"
 FileIO = "1.4"