CompatHelper: bump compat for "KernelFunctions" to "0.9" (#30)

This pull request changes the compat entry for the `KernelFunctions` package from `0.8.20` to `0.8.20, 0.9`.

This keeps the compat entries for earlier versions.

Note: I have not tested your package with this new compat entry. It is your responsibility to make sure that your package tests pass before you merge this pull request.

Co-authored-by: David Widmann <devmotion@users.noreply.github.com>

Project.toml

@@ -1,7 +1,7 @@
 name = "CalibrationTests"
 uuid = "2818745e-0823-50c7-bc2d-405ac343d48b"
 authors = ["David Widmann <david.widmann@it.uu.se>"]
-version = "0.5.0"
+version = "0.5.1"
 
 [deps]
 CalibrationErrors = "33913031-fe46-5864-950f-100836f47845"
@@ -18,7 +18,7 @@ UnPack = "3a884ed6-31ef-47d7-9d2a-63182c4928ed"
 [compat]
 CalibrationErrors = "0.5.12"
 HypothesisTests = "0.8, 0.9, 0.10"
-KernelFunctions = "0.8.20"
+KernelFunctions = "0.8.20, 0.9"
 Reexport = "1"
 StatsBase = "0.32, 0.33"
 StatsFuns = "0.8, 0.9"