CompatHelper: bump compat for Trixi to 0.15 for package LibTrixi.jl, (keep existing compat)

Author: CompatHelper Julia

LibTrixi.jl/Project.toml

@@ -13,7 +13,7 @@ Trixi = "a7f1ee26-1774-49b1-8366-f1abc58fbfcb"
 MPI = "0.20.13"
 OrdinaryDiffEq = "6.53.2"
 Pkg = "1.8"
-Trixi = "0.11.12, 0.12, 0.13, 0.14"
+Trixi = "0.11.12, 0.12, 0.13, 0.14, 0.15"
 julia = "1.8"
 
 [preferences.OrdinaryDiffEq]