Add benchmarks compat bounds

Author: mhauru

benchmarks/Project.toml

@@ -12,3 +12,13 @@ LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 LogDensityProblems = "6fdf6af0-433a-55f7-b3ed-c6c6e0b8df7c"
 PrettyTables = "08abe8d2-0d0c-5749-adfa-8a2ac140af0d"
 ReverseDiff = "37e2e3b7-166d-5795-8a7a-e32c996b4267"
+
+[compat]
+ADTypes = "1.14.0"
+BenchmarkTools = "1.6.0"
+Distributions = "0.25.117"
+# DynamicPPL deliberately has no compat bound, to allow using the local version.
+ForwardDiff = "0.10.38"
+LogDensityProblems = "2.1.2"
+PrettyTables = "2.4.0"
+ReverseDiff = "1.15.3"