CompatHelper: bump compat for "Interpolations" to "0.13" (#88)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: github-actions[bot]

Project.toml

@@ -14,7 +14,7 @@ StatsBase = "2913bbd2-ae8a-5f71-8c99-4fb6c76f3a91"
 Distributions = "0.23, 0.24"
 DocStringExtensions = "0.8"
 FFTW = "1"
-Interpolations = "0.9, 0.10, 0.11, 0.12"
+Interpolations = "0.9, 0.10, 0.11, 0.12, 0.13"
 StatsBase = "0.33"
 julia = "1"