CompatHelper: bump compat for Trixi to 0.7 for package test, (keep existing compat) (#171)

Co-authored-by: CompatHelper Julia <compathelper_noreply@julialang.org>

Author: github-actions[bot]

LibTrixi.jl/test/Project.toml

@@ -5,7 +5,7 @@ Trixi = "a7f1ee26-1774-49b1-8366-f1abc58fbfcb"
 
 [compat]
 OrdinaryDiffEq = "6.53.2"
-Trixi = "0.5.29, 0.6"
+Trixi = "0.5.29, 0.6, 0.7"
 
 [preferences.OrdinaryDiffEq]
 PrecompileAutoSpecialize = false