CompatHelper: bump compat for DynamicPPL to 0.26 for package turing, (keep existing compat) (#603)

Co-authored-by: CompatHelper Julia <compathelper_noreply@julialang.org>
Co-authored-by: Hong Ge <3279477+yebai@users.noreply.github.com>

Author: 3 people

test/turing/Project.toml

@@ -7,7 +7,7 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 Turing = "fce5fe82-541a-59a6-adf8-730c64b5f9a0"
 
 [compat]
-DynamicPPL = "0.24, 0.25"
+DynamicPPL = "0.24, 0.25, 0.26"
 ReverseDiff = "1.15"
 Turing = "0.31"
 julia = "1.7"